{"id":13628,"date":"2026-07-17T18:57:53","date_gmt":"2026-07-17T09:57:53","guid":{"rendered":"https:\/\/code-plus.jp\/gp\/?page_id=13628"},"modified":"2026-07-17T18:57:53","modified_gmt":"2026-07-17T09:57:53","slug":"triangle-generator","status":"publish","type":"page","link":"https:\/\/code-plus.jp\/gp\/tools\/triangle-generator\/","title":{"rendered":"CSS\u4e09\u89d2\u5f62\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30fc\uff5c8\u65b9\u5411\u30fb\u5185\u67a0\u30fb\u304f\u308a\u629c\u304d\u5bfe\u5fdc"},"content":{"rendered":"<!-- \u0f3b\u273f\ud835\udc0f\ud835\udc00\ud835\udc06\ud835\udc04\u0f3a -->\n\n<!-- \u0f3b.mezzala\uff08\u4f59\u767d\u8abf\u6574\uff1apage\u4e0a\uff09\u0f3a -->\n<hr class=\"spacer-mediano\" \/>\n\n<hr id=\"ch-TextConverter\" anchor \/>\n<div class=\"pg-saracnvtvkaa bg-hackingGate\">\n\n  <header class=\"page-header mx-auto\">\n    <!-- \u2756\u30d1\u30f3\u304f\u305a\u30ea\u30b9\u30c8 --><div><!-- breadcrumb.php -->\n<style>\n\/* \u2756breadcrumb.leckermaul\uff08\u30d1\u30f3\u304f\u305a\u30ea\u30b9\u30c8\uff09\n\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u0f1a\u0f36\u22b0\u27e1\u22b1\u0f36\u0f1a\u0f3a*\/\n.zaratan .breadcrumb.leckermaul {\n\twidth: 100%;\n\tmax-width: calc(var(--zvw,1vw) * 92.5);\n\tmargin-inline: auto;\n}\n\n.zaratan .breadcrumb.leckermaul :is(ul, ol) {\n\tmin-height: 3rem;\n\tline-height: initial;\n\tfont-size: 0;\n\tletter-spacing: 0;\n\toverflow: hidden;\n}\n\n.zaratan .breadcrumb.leckermaul li {\n\tdisplay: inline;\n\tline-height: 1.6;\n\tfont-size: clamp(0.775rem, calc(0.775rem + ((1vw - 0.225rem) * 0.1563)), 0.8750rem);\n}\n\n.zaratan .breadcrumb.leckermaul li>*,\n.zaratan .breadcrumb.leckermaul li::before {\n\tposition: relative;\n\ttop: 0.125em;\n\tdisplay: inline-flex;\n\talign-items: center;\n}\n\n.zaratan .breadcrumb.leckermaul a {\n\tdisplay: inline;\n\tcolor: var(--c-notice-600, hsl(240, 32%, 53%));\n\tmargin-right: .5em;\n}\n\n.zaratan .breadcrumb.leckermaul li:nth-of-type(n+2) a {\n\tmargin-left: .5em;\n}\n\n\/* \u73fe\u5728\u306e\u30da\u30fc\u30b8\uff08\u30ea\u30f3\u30af\u306a\u3057\u3002<span aria-current=\"page\">\uff09 *\/\n.zaratan .breadcrumb.leckermaul [aria-current=\"page\"] {\n\tdisplay: inline;\n\tmargin-inline: .5em;\n\tcolor: var(--c-base-600, hsl(224, 6%, 43%));\n}\n\n@media (any-hover:hover) {\n\t.zaratan .breadcrumb.leckermaul a:hover {\n\t\tcolor: var(--c-notice-600, hsl(240, 32%, 53%));\n\t}\n}\n\n\/* .ma-home *\/\n.zaratan .breadcrumb.leckermaul .ma-home {\n\tvertical-align: top;\n}\n\n\/* .separator *\/\n.zaratan .breadcrumb.leckermaul li:nth-of-type(n+2)::before,\n.zaratan .breadcrumb.leckermaul.chevron-right li:nth-of-type(n+2)::before {\n\tcontent: \">\";\n\tcolor: var(--c-notice-600, hsl(240, 32%, 53%))\n}\n\n.zaratan .breadcrumb.leckermaul.slash li:nth-of-type(n+2)::before {\n\tcontent: \"\/\";\n}\n\n.zaratan .breadcrumb.leckermaul.trigon-bullet li:nth-of-type(n+2)::before {\n\tcontent: \"\u2023\";\n}\n<\/style>\n\n\n<nav class=\"breadcrumb leckermaul py-0.5r mx-auto\" aria-label=\"\u30d1\u30f3\u304f\u305a\u30ea\u30b9\u30c8\">\n  <ul class=\"breadcrumb-wrapper\">\n    <!-- \u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u3078\u306e\u30ea\u30f3\u30af\u3092\u8868\u793a -->\n    <li><a href=\"https:\/\/code-plus.jp\/gp\/\"><i><\/i>\u30c8\u30c3\u30d7<\/a><\/li>\n\n          <!-- \u56fa\u5b9a\u30da\u30fc\u30b8\uff08\u305d\u308c\u4ee5\u5916\uff09\uff1a \u5148\u7956\u30da\u30fc\u30b8\u540d\u3068\u3001\u73fe\u5728\u306e\u30da\u30fc\u30b8\u540d\u3092\u8868\u793a -->\n      <li><a href=\"https:\/\/code-plus.jp\/gp\/tools\/\">Web\u30c4\u30fc\u30eb\u4e00\u89a7\uff5cHTML\/CSS\u30fb\u6587\u66f8\u7de8\u96c6\u30fb\u753b\u50cf\u7de8\u96c6<\/a><\/li><li class=\"current_page_item\"><span aria-current=\"page\">CSS\u4e09\u89d2\u5f62\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30fc\uff5c8\u65b9\u5411\u30fb\u5185\u67a0\u30fb\u304f\u308a\u629c\u304d\u5bfe\u5fdc<\/span><\/li>    <!-- \/\/\/if (is_page()) -->\n\n  <\/ul>\n<\/nav><\/div>\n  <\/header><!-- \/\/\/.inheader -->\n\n  <!-- \u0f3b\u00a7\ud835\udc12\ud835\udc04\ud835\udc02\ud835\udc13\ud835\udc08\ud835\udc0e\ud835\udc0d\u0f3a -->\n  <section class=\"sect-cnvtVkaA-Intro contvis-auto\" style=\"contain-intrinsic-size:800px;\">\n    <header class=\"section__inheader innerA mx-auto scroll-fadeIn\">\n      <div class=\"hgroup-wrapper d-iblock mb-0.5r\">\n        <h1 class=\"fz-xxl hdg-page mb-0.25pc\"><span>CSS\u4e09\u89d2\u5f62\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30fc\uff5c8\u65b9\u5411\u30fb\u5185\u67a0\u30fb\u304f\u308a\u629c\u304d\u5bfe\u5fdc<\/span><\/h1>\n        <p class=\"page-foreword fz-ss\">\n          CSS\u306e\u4e09\u89d2\u5f62\u30928\u65b9\u5411\uff08\u25b2\u25bc\u25c0\u25b6\u25e4\u25e5\u25e2\u25e3\uff09\u304b\u3089\u9078\u3093\u3067\u751f\u6210\u3002\u5e45\u30fb\u9ad8\u3055\u30fb\u8272\u306b\u52a0\u3048\u3001\u4e09\u89d2\u5f62\u306e\u5185\u5074\u306b\u4f5c\u308b\u300c\u5185\u67a0\u300d\u3084\u3001\u5185\u5074\u3092\u900f\u660e\u306b\u304f\u308a\u629c\u3044\u305f\u4e09\u89d2\u5f62\u306b\u3082\u5bfe\u5fdc\u3002clip-path\u306e\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3060\u3051\u3067\u4f7f\u3048\u307e\u3059\u3002\n        <\/p>\n      <\/div><!-- \/\/\/.hgroup -->\n\n      <a class=\"fl-right badge is-outlined is-gray fz-xs bdrs-0.25r\" href=\"#ch-Explanation\">\n        <i class=\"icon mas ma-help\"><\/i>&nbsp;<span>\u4f7f\u3044\u65b9<\/span>\n      <\/a>\n    <\/header><!-- \/\/\/.inheader -->\n  <\/section>\n\n\n  <!-- \u0f3b\u00a7\ud835\udc12\ud835\udc04\ud835\udc02\ud835\udc13\ud835\udc08\ud835\udc0e\ud835\udc0d\u0f3a -->\n  <hr id=\"ch-Converter\" anchor \/>\n  <section class=\"sect-cnvtVkaA-Converter contvis-auto\" style=\"contain-intrinsic-size:800px;\">\n    <div class=\"section__interior innerA fxd-row mx-auto\">\n\n      <figure class=\"section__leftlane\">\n        <div class=\"hgroup-wrapper\">\n          <h3 class=\"fz-rg hdg-section mb-0.25pc\"><span>\u25bc\u4e09\u89d2\u5f62\u3092\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044<\/span><\/h3>\n        <\/div><!-- \/\/\/.hgroup -->\n\n        <!-- \u5411\u304d -->\n        <div class=\"colgroup w-full\">\n          <h4 class=\"title is-outlined fz-sm\">\u4e09\u89d2\u5f62\u306e\u8a2d\u5b9a\n            <button type=\"button\" id=\"resetBtn\" onclick=\"resetDefaultOptions()\" class=\"badge is-outlined is-gray fz-xxs ml-0.5r\">\n              <i class=\"icon mas ma-restart_alt\"><\/i>&nbsp;<span>\u30ea\u30bb\u30c3\u30c8<\/span>\n            <\/button>\n          <\/h4>\n          <div class=\"box is-outlined fz-sm\">\n            <div id=\"shapeGrid\" style=\"display:grid; grid-template-columns:repeat(4,1fr); gap:0.5rem;\"><\/div>\n          <\/div>\n        <\/div><!-- \/\/\/.colgroup -->\n\n        <!-- \u30aa\u30d7\u30b7\u30e7\u30f3 -->\n        <div class=\"colgroup w-full mt-1r\">\n          <label class=\"label is-outlined fz-sm\">\n            <span class=\"fx-shrink w-8e\">\u5e45\uff1a&ensp;<\/span>\n            <input type=\"number\" id=\"triWidth\" class=\"input w-14e\" value=\"240\" min=\"1\" max=\"4000\">&nbsp;px\n          <\/label>\n          <label class=\"label is-outlined fz-sm\">\n            <span class=\"fx-shrink w-8e\">\u9ad8\u3055\uff1a&ensp;<\/span>\n            <input type=\"number\" id=\"triHeight\" class=\"input w-14e\" value=\"140\" min=\"1\" max=\"4000\">&nbsp;px\n          <\/label>\n          <label class=\"label is-outlined fz-sm\">\n            <span class=\"fx-shrink w-8e\">\u4e09\u89d2\u5f62\u306e\u8272\uff1a&ensp;<\/span>\n            <input type=\"text\" id=\"triColorHex\" class=\"input w-14e\" value=\"hsl(195, 75%, 89%)\">\n            <input type=\"color\" id=\"triColorPicker\" style=\"width:3em; height:3em;\" value=\"hsl(195, 75%, 89%)\">\n          <\/label>\n        <\/div><!-- \/\/\/.colgroup -->\n\n        <!-- \u5185\u67a0\u306e\u8a2d\u5b9a -->\n        <div class=\"colgroup w-full mt-1r\">\n          <h4 class=\"title is-outlined fz-sm\">\u5185\u67a0\uff08\u4e09\u89d2\u5f62\u306e\u5185\u5074\u306b\u4f5c\u308b\u67a0\uff09<\/h4>\n          <label class=\"label is-outlined fz-sm\">\n            <input type=\"checkbox\" class=\"checkbox\" id=\"useInner\" checked>\n            \u5185\u67a0\u3092\u3064\u3051\u308b\n          <\/label>\n\n          <div id=\"innerControls\" style=\"display:none;\">\n            <label class=\"label is-outlined fz-sm\">\n              <span class=\"fx-shrink w-8e\">\u592a\u3055\uff1a&ensp;<\/span>\n              <input type=\"number\" id=\"innerWidth\" class=\"input w-14e\" value=\"20\" min=\"1\" max=\"500\">&nbsp;px\n            <\/label>\n            <label class=\"label is-outlined fz-sm\">\n              <input type=\"checkbox\" class=\"checkbox\" id=\"useVar\" checked>\n              \u592a\u3055\u3092 CSS\u5909\u6570\uff08<code>--border-width<\/code>\uff09\u3067\u51fa\u529b\u3059\u308b\n            <\/label>\n            <label class=\"label is-outlined fz-sm\">\n              <input type=\"checkbox\" class=\"checkbox\" id=\"innerHollow\">\n              \u5185\u5074\u3092\u900f\u660e\u306b\u3059\u308b\uff08\u304f\u308a\u629c\u304d\uff09\n            <\/label>\n          <\/div>\n\n          <label id=\"innerColorRow\" class=\"label is-outlined fz-sm\">\n            <span class=\"fx-shrink w-8e\">\u5185\u5074\u306e\u8272\uff1a&ensp;<\/span>\n            <input type=\"text\" id=\"innerColorHex\" class=\"input w-14e\" value=\"hsl(224, 26%, 95%)\">\n            <input type=\"color\" id=\"innerColorPicker\" value=\"hsl(224, 26%, 95%)\" style=\"width:3em; height:3em;\">\n          <\/label>\n        <\/div><!-- \/\/\/.colgroup -->\n        <p class=\"fz-xs c-gray mt-0.5r\">\n          \u5185\u67a0\u306f\u4e09\u89d2\u5f62\u306e<b class=\"fw-600\">\u5185\u5074<\/b>\u306b\u4f5c\u3089\u308c\u308b\u305f\u3081\u3001\u5916\u5f62\u30b5\u30a4\u30ba\u306f\u5909\u308f\u308a\u307e\u305b\u3093<br \/>\uff08\u25b2\u304c\u25b3\u306b\u306a\u3063\u3066\u3082\u5927\u304d\u3055\u306f\u540c\u3058\uff09\u3002\n        <\/p>\n        <ins id=\"innerWarning\"><\/ins>\n      <\/figure><!-- \/\/\/.leftlane -->\n\n\n      <figure class=\"section__centerlane\">\n        <aside class=\"sticky-sidebar fxd-column pc-center\" style=\"height:22rem;\">\n        <\/aside>\n      <\/figure><!-- \/\/\/.centerlane -->\n\n\n      <figure class=\"section__rightlane\">\n        <div class=\"chest-wrapper relatived\">\n          <h3 class=\"fxd-row fz-rg hdg-section mb-0.25pc\">\n            <span>\u25bc\u30d7\u30ec\u30d3\u30e5\u30fc<\/span>\n            <div class=\"ifxd-row gx-0.5r ml-auto\">\n              <span class=\"fz-xs c-gray\" style=\"margin-right:0.25rem;\">\u80cc\u666f\uff1a<\/span>\n              <button type=\"button\" class=\"bgSwatch\" data-bg=\"checker\" style=\"width:1.5em; height:1.5em; border:2px solid #2A417E; border-radius:50%; background-image:linear-gradient(45deg,#ddd 25%,transparent 25%,transparent 75%,#ddd 75%),linear-gradient(45deg,#ddd 25%,#fff 25%,#fff 75%,#ddd 75%); background-size:8px 8px; background-position:0 0,4px 4px;\" title=\"\u5e02\u677e\uff08\u900f\u904e\u78ba\u8a8d\uff09\"><\/button>\n              <button type=\"button\" class=\"bgSwatch\" data-bg=\"#ffffff\" style=\"width:1.5em; height:1.5em; border:1px solid #ccc; border-radius:50%; background:#fff;\" title=\"\u767d\"><\/button>\n              <button type=\"button\" class=\"bgSwatch\" data-bg=\"#333333\" style=\"width:1.5em; height:1.5em; border:1px solid #ccc; border-radius:50%; background:#333;\" title=\"\u9ed2\"><\/button>\n            <\/div>\n          <\/h3>\n\n          <div id=\"previewArea\" style=\"overflow:auto; border:1px solid #ddd; border-radius:8px; padding:1rem; min-height:14pc; display:flex; align-items:center; justify-content:center; background-image:linear-gradient(45deg, #ddd 25%, transparent 25%, transparent 75%, #ddd 75%), linear-gradient(45deg, #ddd 25%, rgb(255, 255, 255) 25%, rgb(255, 255, 255) 75%, #ddd 75%); background-size:16px 16px; background-position:0px 0px, 8px 8px;\">\n            <div id=\"triPreview\"><\/div>\n            <ins id=\"encodedMessage\"><\/ins>\n          <\/div>\n        <\/div><!-- \/\/\/.chest -->\n\n        <div class=\"colgroup w-full mt-1r\">\n          <h3 class=\"fxd-row fz-rg hdg-section mb-0.25pc\">\u25bcCSS\u30b3\u30fc\u30c9<\/h3>\n          <textarea class=\"textarea fdz-content\" id=\"decodeArea\" readonly><\/textarea>\n          <ins id=\"copyMessage\"><\/ins>\n        <\/div>\n\n        <p class=\"ta-center mt-0.5r\">\n          <button type=\"button\" id=\"copyCssBtn\" class=\"button is-solided is-primary\">\n            <i class=\"icon mas ma-content_copy\"><\/i>&nbsp;<span>CSS\u3092\u30b3\u30d4\u30fc<\/span>\n          <\/button>\n          <button type=\"button\" id=\"copyHtmlBtn\" class=\"button is-outlined is-primary\" style=\"margin-left:0.5rem;\">HTML\u3092\u30b3\u30d4\u30fc<\/button>\n        <\/p>\n      <\/figure><!-- \/\/\/.rightlane -->\n    <\/div><!-- \/\/\/.interior.fxd-row -->\n  <\/section>\n\n\n  <!-- \u0f3b\u00a7\ud835\udc12\ud835\udc04\ud835\udc02\ud835\udc13\ud835\udc08\ud835\udc0e\ud835\udc0d\u0f3a -->\n  <hr id=\"ch-Explanation\" anchor \/>\n  <section class=\"sect-cnvtVkaA-Explanation pt-3r contvis-auto\" style=\"contain-intrinsic-size:800px;\">\n    <div class=\"section__interior innerA mx-auto scroll-fadeIn\">\n      <div class=\"box is-broad is-solided c-base-900\">\n        <h4 class=\"hdg-explanation fz-md mb-0.25pc\">\u4f7f\u3044\u65b9<\/h4>\n        <p class=\"fz-ss mb-1r\">\n          \u4e09\u89d2\u5f62\u306e\u5411\u304d\u30928\u65b9\u5411\u304b\u3089\u9078\u3073\u3001\u5e45\u30fb\u9ad8\u3055\u30fb\u8272\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u53f3\u5074\u306b\u30d7\u30ec\u30d3\u30e5\u30fc\u3068CSS\u30b3\u30fc\u30c9\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3001\u305d\u306e\u307e\u307e\u4f7f\u3048\u307e\u3059\u3002\u751f\u6210\u3055\u308c\u308bCSS\u306f <code>clip-path<\/code> \u30d9\u30fc\u30b9\u3067\u3059\u3002\n        <\/p>\n\n        <h5 class=\"fz-ss hdg-explanation mb-0.25pc mt-1r\">\ud83d\udcd0 \u5185\u67a0\u306b\u3064\u3044\u3066<\/h5>\n        <p class=\"fz-ss mb-1r\">\n          \u4e00\u822c\u7684\u306a\u300c\u67a0\u7dda\u300d\u306f\u8981\u7d20\u306e\u5916\u5074\u306b\u592a\u3055\u304c\u8db3\u3055\u308c\u308b\u305f\u3081\u3001\u67a0\u3092\u3064\u3051\u308b\u3068\u56f3\u5f62\u304c\u5927\u304d\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u306e\u30c4\u30fc\u30eb\u306e<b class=\"fw-600\">\u5185\u67a0<\/b>\u306f\u4e09\u89d2\u5f62\u306e<b class=\"fw-600\">\u5185\u5074<\/b>\u306b\u4f5c\u3089\u308c\u308b\u306e\u3067\u3001<b class=\"fw-600\">\u5916\u5f62\u30b5\u30a4\u30ba\u304c\u5909\u308f\u308a\u307e\u305b\u3093<\/b>\u3002\u25b2\u3092\u25b3\uff08\u7dda\u3060\u3051\u306e\u4e09\u89d2\u5f62\uff09\u306b\u3057\u3066\u3082\u3001\u6307\u5b9a\u3057\u305f\u5e45\u30fb\u9ad8\u3055\u306e\u307e\u307e\u3067\u3059\u3002\n        <\/p>\n        <p class=\"fz-ss mb-1r\">\n          \u5185\u67a0\u306e\u4e09\u89d2\u5f62\u306f\u300c\u5168\u8fba\u304b\u3089\u5782\u76f4\u306b\u6307\u5b9a\u3057\u305f\u592a\u3055\u3076\u3093\u5185\u5074\u300d\u306b\u7e2e\u3081\u305f<b class=\"fw-600\">\u76f8\u4f3c\u5f62<\/b>\u3067\u3059\u3002\u5185\u63a5\u5186\u306e\u534a\u5f84\u304c <code>r<\/code> \u304b\u3089 <code>r - t<\/code> \u306b\u306a\u308b\u306e\u3067\u3001\u7e2e\u5c0f\u7387\u306f <code>k = 1 - t \/ r<\/code>\u3002\u3053\u306e <code>r<\/code> \u306f\u4e09\u89d2\u5f62\u306e\u5f62\u3067\u5909\u308f\u308b\u305f\u3081\u3001\u30c4\u30fc\u30eb\u5074\u3067\u81ea\u52d5\u8a08\u7b97\u3057\u3066\u3044\u307e\u3059\u3002\n        <\/p>\n\n        <h5 class=\"fz-ss hdg-explanation mb-0.25pc mt-1r\">\ud83d\udd27 CSS\u5909\u6570\u3067\u592a\u3055\u3092\u7ba1\u7406\u3059\u308b<\/h5>\n        <p class=\"fz-ss mb-1r\">\n          \u300c\u592a\u3055\u3092CSS\u5909\u6570\u3067\u51fa\u529b\u3059\u308b\u300d\u3092ON\u306b\u3059\u308b\u3068\u3001\u5185\u67a0\u306e\u592a\u3055\u304c <code>--border-width<\/code> \u306b\u307e\u3068\u307e\u308a\u3001<b class=\"fw-600\">1\u7b87\u6240\u3092\u66f8\u304d\u63db\u3048\u308b\u3060\u3051\u3067\u592a\u3055\u3092\u5909\u66f4<\/b>\u3067\u304d\u307e\u3059\u3002\u5f15\u304d\u7b97\u3059\u308b\u91cf\u306f <code>var(--border-width) * \u4fc2\u6570<\/code> \u306e\u5f62\u3067\u51fa\u529b\u3055\u308c\u307e\u3059\u3002\n        <\/p>\n        <p class=\"fz-ss mb-1r\">\n          \u3053\u306e\u4fc2\u6570\uff08<code>W \/ r<\/code>\uff09\u306f<b class=\"fw-600\">\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3060\u3051\u3067\u6c7a\u307e\u308a\u3001\u7d76\u5bfe\u30b5\u30a4\u30ba\u306b\u4f9d\u5b58\u3057\u307e\u305b\u3093<\/b>\u3002\u305d\u306e\u305f\u3081\u3001\u751f\u6210\u3057\u305fCSS\u306e <code>width: 240px<\/code> \u3092 <code>width: 50%<\/code> \u306e\u3088\u3046\u306a\u53ef\u5909\u5024\u306b\u66f8\u304d\u63db\u3048\u3066\u3082\u3001\u6bd4\u7387\u3055\u3048\u4fdd\u3066\u3070\u4fc2\u6570\u306f\u305d\u306e\u307e\u307e\u4f7f\u3048\u307e\u3059\u3002\u4e8c\u7b49\u8fba\u4e09\u89d2\u5f62\uff08\u25b2\u25bc\u25c0\u25b6\uff09\u306e\u4e2d\u592e\u5bc4\u305b\u3082 <code>50%<\/code> \u3068 <code>transform<\/code> \u3067\u51fa\u529b\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u5e45\u306e\u5dee\u3057\u66ff\u3048\u306b\u8ffd\u5f93\u3057\u307e\u3059\u3002\n        <\/p>\n\n        <h5 class=\"fz-ss hdg-explanation mb-0.25pc mt-1r\">\ud83d\udd33 \u5185\u5074\u3092\u900f\u660e\u306b\u3059\u308b\uff08\u304f\u308a\u629c\u304d\uff09<\/h5>\n        <p class=\"fz-ss mb-1r\">\n          \u300c\u5185\u5074\u3092\u900f\u660e\u306b\u3059\u308b\u300d\u3092ON\u306b\u3059\u308b\u3068\u3001<b class=\"fw-600\">\u7dda\u3060\u3051\u306e\u4e09\u89d2\u5f62<\/b>\uff08\u5185\u5074\u304c\u80cc\u666f\u306e\u900f\u3051\u308b\u4e09\u89d2\u5f62\uff09\u306b\u306a\u308a\u307e\u3059\u3002\u8981\u7d20\u30922\u3064\u91cd\u306d\u3066\u5185\u5074\u3092\u767d\u304f\u5857\u308b\u65b9\u5f0f\u3067\u306f\u3001\u80cc\u666f\u304c\u753b\u50cf\u3084\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u3068\u304d\u306b\u767d\u3044\u4e09\u89d2\u5f62\u304c\u6d6e\u3044\u3066\u3057\u307e\u3044\u307e\u3059\u304c\u3001\u3053\u306e\u65b9\u5f0f\u306a\u3089<b class=\"fw-600\">\u672c\u5f53\u306b\u7a74\u304c\u958b\u304f<\/b>\u306e\u3067\u3001\u3069\u3093\u306a\u80cc\u666f\u306e\u4e0a\u3067\u3082\u4f7f\u3048\u307e\u3059\u3002\n        <\/p>\n        <p class=\"fz-ss mb-1r\">\n          \u4ed5\u7d44\u307f\u306f <code>clip-path: polygon(evenodd, \u2026)<\/code> \u3067\u3059\u3002\u5916\u5468\u3068\u5185\u5468\u3092\u4e00\u7b46\u66f8\u304d\u3067\u3064\u306a\u304e\u3001\u5076\u5947\u898f\u5247\uff08evenodd\uff09\u3067\u5185\u5074\u3092\u5857\u3089\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u8981\u7d20\u306f1\u3064\u3067\u6e08\u307f\u307e\u3059\u3002\n        <\/p>\n\n        <h5 class=\"fz-ss hdg-explanation mb-0.25pc mt-1r\">\ud83d\udca1 clip-path \u3068 border \u306e\u4f7f\u3044\u5206\u3051<\/h5>\n        <table class=\"table tbl-responsive fz-ss mb-1r\">\n          <thead>\n            <tr class=\"rung\">\n              <th style=\"min-width:18em;\">\u89b3\u70b9<\/th>\n              <td>clip-path\uff08\u3053\u306e\u30c4\u30fc\u30eb\uff09<\/td>\n              <td>border\uff08\u5f93\u6765\u624b\u6cd5\uff09<\/td>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr class=\"rung\">\n              <th>\u5e45\u306e\u6307\u5b9a<\/th>\n              <td><code>%<\/code> \u304c\u4f7f\u3048\u3001\u89aa\u5e45\u306b\u8ffd\u5f93\u3067\u304d\u308b<\/td>\n              <td><code>px<\/code> \/ <code>vw<\/code> \u306e\u307f<\/td>\n            <\/tr>\n            <tr class=\"rung\">\n              <th>\u80cc\u666f<\/th>\n              <td>\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30fb\u753b\u50cf\u3082\u4f7f\u3048\u308b<\/td>\n              <td>\u5358\u8272\u306e\u307f<\/td>\n            <\/tr>\n            <tr class=\"rung\">\n              <th>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3<\/th>\n              <td>\u9802\u70b9\u3092\u52d5\u304b\u305b\u308b<\/td>\n              <td>\u82e6\u624b<\/td>\n            <\/tr>\n            <tr class=\"rung\">\n              <th>\u304f\u308a\u629c\u304d<\/th>\n              <td><code>evenodd<\/code> \u3067\u7a74\u3092\u958b\u3051\u3089\u308c\u308b<\/td>\n              <td>\u4e0d\u53ef\uff08\u5185\u5074\u3092\u5857\u308b\u3060\u3051\uff09<\/td>\n            <\/tr>\n            <tr class=\"rung\">\n              <th>\u5bfe\u5fdc\u74b0\u5883<\/th>\n              <td>IE\u975e\u5bfe\u5fdc\uff08\u73fe\u72b6\u307b\u307c\u554f\u984c\u306a\u3057\uff09<\/td>\n              <td>\u307b\u307c\u5168\u3066\uff08HTML\u30e1\u30fc\u30eb\u7b49\uff09<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n        <p class=\"fz-ss\">\n          \u9762\u3092\u5857\u308b\u306a\u3089 <code>clip-path<\/code>\u3001\u30d5\u30ad\u30c0\u30b7\u306e\u5c3b\u5c3e\u306e\u3088\u3046\u306b<b class=\"fw-600\">\u7e01\u53d6\u308a\u306e\u3042\u308b\u5c0f\u3055\u306a\u4e09\u89d2\u5f62<\/b>\u3084\u3001<b class=\"fw-600\">HTML\u30e1\u30fc\u30eb<\/b>\u306a\u3069 <code>clip-path<\/code> \u304c\u4f7f\u3048\u306a\u3044\u5834\u9762\u3067\u306f <code>border<\/code> \u304c\u6709\u5229\u3067\u3059\u3002\n        <\/p>\n      <\/div>\n    <\/div><!-- \/\/\/.interior -->\n  <\/section><!-- \/\/\/.section -->\n\n\n  <!-- \u0f3b\u00a7\ud835\udc12\ud835\udc04\ud835\udc02\ud835\udc13\ud835\udc08\ud835\udc0e\ud835\udc0d\u0f3a -->\n  <hr id=\"ch-Relation\" anchor \/>\n  <section class=\"sect-cnvtVkaA-Relation\" style=\"contain-intrinsic-size:1000px;\">\n    <div class=\"section__interior innerA mx-auto scroll-fadeIn\">\n      <div class=\"hgroup-wrapper hgroupA mb-0.5pc\">\n        <h5 class=\"hdg-relation fz-rg\"><span>\u95a2\u9023\u30c4\u30fc\u30eb<\/span><\/h5>\n      <\/div><!-- \/\/\/.hgroup -->\n\n      <ul class=\"shelf-wrapper_pc shelfA\" data-cols_pc=\"2\">\n        <li class=\"slide\">\n          <a href=\"https:\/\/code-plus.jp\/gp\/tools\/colorpalette-generator\/\" class=\"linkbox\">\n            <h4 class=\"linkbox-title fz-md\">\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30fc<\/h4>\n            <span class=\"linkbox-excerpt\">Munsell\u8272\u5f69\u7406\u8ad6\u306e4\u8272\u30d1\u30ec\u30c3\u30c8\u3092\u81ea\u52d5\u751f\u6210\u3001WCAG\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u8868\u793a\u3002<\/span>\n          <\/a>\n        <\/li>\n        <li class=\"slide\">\n          <a href=\"https:\/\/code-plus.jp\/gp\/tools\/responsive-clamp-calculator\/\" class=\"linkbox\">\n            <h4 class=\"linkbox-title fz-md\">clamp() \u8a08\u7b97\u30c4\u30fc\u30eb<\/h4>\n            <span class=\"linkbox-excerpt\">\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306a\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u30fb\u4f59\u767d\u306eclamp()\u3092\u8a08\u7b97\u3002<\/span>\n          <\/a>\n        <\/li>\n      <\/ul><!-- \/\/\/.shelf -->\n    <\/div><!-- \/\/\/.interior -->\n  <\/section><!-- \/\/\/.section -->\n\n\n  <!-- \u0f3b.mediano\uff08\u4f59\u767d\u8abf\u6574\uff1apage\u4e0b\uff09\u0f3a -->\n  <hr class=\"spacer-mezzala\" \/>\n\n<\/div><!-- \/\/\/\u25b2.page  -->\n\n\n<script>\n  document.addEventListener('DOMContentLoaded', function () {\n\n    \/\/ ============================================================\n    \/\/  \u4e09\u89d2\u5f62\u306e\u5b9a\u7fa9\n    \/\/   poly : \u5916\u5468\u306e\u9802\u70b9\uff080\u301c1\u306e\u6b63\u898f\u5316\u5ea7\u6a19\uff09\n    \/\/   type : \u5185\u63a5\u5186\u534a\u5f84\u306e\u8a08\u7b97\u30bf\u30a4\u30d7\n    \/\/   inner: \u5185\u5074\u4e09\u89d2\u5f62\u306e\u9802\u70b9\uff08px\uff09\u3092\u8fd4\u3059\n    \/\/   pos  : \u5185\u67a0\u3092 ::after \u3067\u7f6e\u304f\u3068\u304d\u306e\u4f4d\u7f6e\uff08px\uff09\n    \/\/ ============================================================\n    \/\/ inner(X, Y, cW, cH) \u306e X \/ Y \u306f\u5ea7\u6a19\u30ec\u30f3\u30c0\u30e9\u3002\u5f15\u6570\u306f\u3059\u3079\u3066\u300c\u5185\u67a0\u306e\u592a\u3055 t \u306e\u500d\u6570\u300d\u3002\n    \/\/   .t(m)   \u2026 \u5de6\uff08\u4e0a\uff09\u304b\u3089 m\u00d7t\n    \/\/   .pct(p) \u2026 \u5e45\uff08\u9ad8\u3055\uff09\u306e p%\n    \/\/   .rev(m) \u2026 \u53f3\uff08\u4e0b\uff09\u304b\u3089 m\u00d7t \uff1d calc(100% - m\u00d7t)\n    \/\/ cW = W\/r, cH = H\/r\uff08\u5185\u63a5\u5186\u534a\u5f84\u304b\u3089\u6c42\u307e\u308b\u4fc2\u6570\uff09\u3002\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3060\u3051\u3067\u6c7a\u307e\u308b\u306e\u3067\u3001\n    \/\/ width \u3092 px \u304b\u3089 % \u306b\u5dee\u3057\u66ff\u3048\u3066\u3082\u3001\u3053\u306e\u4fc2\u6570\u306e\u307e\u307e\u4f7f\u3048\u307e\u3059\u3002\n    var SHAPES = {\n      up: {\n        label: '\u25b2', name: '\u4e0a',\n        poly: [[0.5, 0], [0, 1], [1, 1]],\n        type: 'iso-h',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.pct(50), Y.t(cH - 1)],\n            [X.t(cW \/ 2), Y.rev(1)],\n            [X.rev(cW \/ 2), Y.rev(1)]\n          ];\n        },\n        pos: function (T) { return { left: '50%', bottom: T, transform: 'translateX(-50%)' }; }\n      },\n      down: {\n        label: '\u25bc', name: '\u4e0b',\n        poly: [[0, 0], [1, 0], [0.5, 1]],\n        type: 'iso-h',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.t(cW \/ 2), Y.t(1)],\n            [X.rev(cW \/ 2), Y.t(1)],\n            [X.pct(50), Y.rev(cH - 1)]\n          ];\n        },\n        pos: function (T) { return { left: '50%', top: T, transform: 'translateX(-50%)' }; }\n      },\n      left: {\n        label: '\u25c0', name: '\u5de6',\n        poly: [[0, 0.5], [1, 0], [1, 1]],\n        type: 'iso-v',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.t(cW - 1), Y.pct(50)],\n            [X.rev(1), Y.t(cH \/ 2)],\n            [X.rev(1), Y.rev(cH \/ 2)]\n          ];\n        },\n        pos: function (T) { return { right: T, top: '50%', transform: 'translateY(-50%)' }; }\n      },\n      right: {\n        label: '\u25b6', name: '\u53f3',\n        poly: [[0, 0], [1, 0.5], [0, 1]],\n        type: 'iso-v',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.t(1), Y.t(cH \/ 2)],\n            [X.rev(cW - 1), Y.pct(50)],\n            [X.t(1), Y.rev(cH \/ 2)]\n          ];\n        },\n        pos: function (T) { return { left: T, top: '50%', transform: 'translateY(-50%)' }; }\n      },\n      tl: {\n        label: '\u25e4', name: '\u5de6\u4e0a',\n        poly: [[0, 0], [1, 0], [0, 1]],\n        type: 'corner',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.t(1), Y.t(1)],\n            [X.rev(cW - 1), Y.t(1)],\n            [X.t(1), Y.rev(cH - 1)]\n          ];\n        },\n        pos: function (T) { return { left: T, top: T }; }\n      },\n      tr: {\n        label: '\u25e5', name: '\u53f3\u4e0a',\n        poly: [[0, 0], [1, 0], [1, 1]],\n        type: 'corner',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.t(cW - 1), Y.t(1)],\n            [X.rev(1), Y.t(1)],\n            [X.rev(1), Y.rev(cH - 1)]\n          ];\n        },\n        pos: function (T) { return { right: T, top: T }; }\n      },\n      br: {\n        label: '\u25e2', name: '\u53f3\u4e0b',\n        poly: [[0, 1], [1, 0], [1, 1]],\n        type: 'corner',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.t(cW - 1), Y.rev(1)],\n            [X.rev(1), Y.t(cH - 1)],\n            [X.rev(1), Y.rev(1)]\n          ];\n        },\n        pos: function (T) { return { right: T, bottom: T }; }\n      },\n      bl: {\n        label: '\u25e3', name: '\u5de6\u4e0b',\n        poly: [[0, 0], [1, 1], [0, 1]],\n        type: 'corner',\n        inner: function (X, Y, cW, cH) {\n          return [\n            [X.t(1), Y.t(cH - 1)],\n            [X.rev(cW - 1), Y.rev(1)],\n            [X.t(1), Y.rev(1)]\n          ];\n        },\n        pos: function (T) { return { left: T, bottom: T }; }\n      }\n    };\n\n    \/\/ \u4fc2\u6570\uff083\u6841\uff09\u3002t=20px \u306a\u3089 0.001 \u306e\u8aa4\u5dee\u3067\u3082 0.02px \u306a\u306e\u3067\u5341\u5206\u3002\n    function coef(v) { return String(Math.round(v * 1000) \/ 1000); }\n\n    \/\/ --- \u5ea7\u6a19\u30ec\u30f3\u30c0\u30e9 ---\n    \/\/ CSS\u5909\u6570\u30e2\u30fc\u30c9\uff1am\u00d7t \u3092 var(--border-width) \u30d9\u30fc\u30b9\u3067\u51fa\u3059\n    function vExpr(m) {\n      if (Math.abs(m - 1) < 1e-9) return 'var(--border-width)';\n      return 'calc(var(--border-width) * ' + coef(m) + ')';\n    }\n    function vBare(m) {   \/\/ calc() \u306e\u4e2d\u306b\u5165\u308c\u308b\u7528\uff08calc\u306e\u5165\u308c\u5b50\u3092\u907f\u3051\u308b\uff09\n      if (Math.abs(m - 1) < 1e-9) return 'var(--border-width)';\n      return 'var(--border-width) * ' + coef(m);\n    }\n    function varCoord() {\n      return {\n        t: function (m) { return vExpr(m); },\n        pct: function (p) { return p + '%'; },\n        rev: function (m) { return 'calc(100% - ' + vBare(m) + ')'; }\n      };\n    }\n    \/\/ px\u30e2\u30fc\u30c9\uff1am\u00d7t \u3092\u8a08\u7b97\u6e08\u307f\u306e px \u3067\u51fa\u3059\n    function pxCoord(t) {\n      return {\n        t: function (m) { return px(m * t); },\n        pct: function (p) { return p + '%'; },\n        rev: function (m) { return 'calc(100% - ' + px(m * t) + ')'; }\n      };\n    }\n\n    var ORDER = ['up', 'down', 'left', 'right', 'tl', 'tr', 'br', 'bl'];\n\n    \/\/ ------------------------------------------------------------\n    \/\/  \u5185\u63a5\u5186\u306e\u534a\u5f84\uff08\u5f62\u306b\u3088\u3063\u3066\u5f0f\u304c\u5909\u308f\u308b\uff09\n    \/\/ ------------------------------------------------------------\n    function incircleRadius(type, W, H) {\n      if (type === 'corner') {\n        \/\/ \u76f4\u89d2\u4e09\u89d2\u5f62\uff08\u811a W\u30fbH\uff09\n        return (W + H - Math.sqrt(W * W + H * H)) \/ 2;\n      }\n      if (type === 'iso-h') {\n        \/\/ \u4e8c\u7b49\u8fba\uff08\u5e95\u8fba W\u30fb\u9ad8\u3055 H\uff09\n        return W * H \/ (W + Math.sqrt(W * W + 4 * H * H));\n      }\n      \/\/ iso-v : \u4e8c\u7b49\u8fba\uff08\u5e95\u8fba H\u30fb\u9ad8\u3055 W\uff09\n      return H * W \/ (H + Math.sqrt(H * H + 4 * W * W));\n    }\n\n    \/\/ \u6570\u5024\u3092\u898b\u3084\u3059\u304f\uff08\u5c0f\u6570\u7b2c2\u4f4d\u307e\u3067\u30fb\u672b\u5c3e\u30bc\u30ed\u9664\u53bb\uff09\n    function num(v) {\n      return String(Math.round(v * 100) \/ 100);\n    }\n    function px(v) { return num(v) + 'px'; }\n\n    \/\/ \u6b63\u898f\u5316\u5ea7\u6a19 \u2192 polygon() \u306e % \u8868\u8a18\n    function polyToPercent(poly) {\n      return 'polygon(' + poly.map(function (p) {\n        return (p[0] * 100) + '% ' + (p[1] * 100) + '%';\n      }).join(', ') + ')';\n    }\n\n    \/\/ ------------------------------------------------------------\n    \/\/  DOM\n    \/\/ ------------------------------------------------------------\n    var shapeGrid = document.getElementById('shapeGrid');\n    var triWidth = document.getElementById('triWidth');\n    var triHeight = document.getElementById('triHeight');\n    var triColorHex = document.getElementById('triColorHex');\n    var triColorPick = document.getElementById('triColorPicker');\n    var useInner = document.getElementById('useInner');\n    var innerControls = document.getElementById('innerControls');\n    var innerWidth = document.getElementById('innerWidth');\n    var innerHollow = document.getElementById('innerHollow');\n    var useVar = document.getElementById('useVar');\n    var innerColorRow = document.getElementById('innerColorRow');\n    var innerColorHex = document.getElementById('innerColorHex');\n    var innerColorPick = document.getElementById('innerColorPicker');\n    var innerWarning = document.getElementById('innerWarning');\n    var triPreview = document.getElementById('triPreview');\n    var previewArea = document.getElementById('previewArea');\n    var decodeArea = document.getElementById('decodeArea');\n    var copyMessage = document.getElementById('copyMessage');\n\n    var current = 'br';\n\n    \/\/ \u5411\u304d\u30dc\u30bf\u30f3\u3092\u751f\u6210\n    ORDER.forEach(function (key) {\n      var s = SHAPES[key];\n      var a = document.createElement('a');\n      a.href = 'javascript:void(0);';\n      a.className = 'shapeBtn badge is-outlined fz-sm';\n      a.dataset.shape = key;\n      a.style.cssText = 'display:flex; flex-direction:column; align-items:center; justify-content:center; padding:0.5rem 0; text-align:center; border-radius:4px;';\n      a.innerHTML = '<span style=\"font-size:1.4em; line-height:1;\">' + s.label + '<\/span>'\n        + '<span class=\"fz-xs\" style=\"margin-top:0.15rem;\">' + s.name + '<\/span>';\n      a.addEventListener('click', function () {\n        current = key;\n        markShape();\n        update();\n      });\n      shapeGrid.appendChild(a);\n    });\n\n    function markShape() {\n      shapeGrid.querySelectorAll('.shapeBtn').forEach(function (el) {\n        var on = el.dataset.shape === current;\n        el.classList.toggle('is-solided', on);\n        el.classList.toggle('is-primary', on);\n        el.classList.toggle('is-outlined', !on);\n      });\n    }\n\n    \/\/ ------------------------------------------------------------\n    \/\/  \u30e1\u30a4\u30f3\uff1a\u8a08\u7b97 \u2192 CSS\u751f\u6210 \u2192 \u30d7\u30ec\u30d3\u30e5\u30fc\n    \/\/ ------------------------------------------------------------\n    function update() {\n      var s = SHAPES[current];\n      var W = Math.max(1, parseFloat(triWidth.value) || 1);\n      var H = Math.max(1, parseFloat(triHeight.value) || 1);\n      var color = triColorHex.value.trim() || 'hsl(195, 75%, 89%)';\n      var hasInner = useInner.checked;\n      var hollow = innerHollow.checked;\n      var t = Math.max(0, parseFloat(innerWidth.value) || 0);\n      var innerColor = innerColorHex.value.trim() || 'hsl(224, 26%, 95%)';\n\n      innerControls.style.display = hasInner ? '' : 'none';\n      innerColorRow.style.display = (hasInner && !hollow) ? '' : 'none';\n      innerWarning.innerHTML = '';\n\n      var outerPoly = polyToPercent(s.poly);\n      var css = '';\n      var previewStyle = {};\n\n      if (!hasInner || t <= 0) {\n        \/\/ --- \u5185\u67a0\u306a\u3057\uff1a1\u8981\u7d20 ---\n        css = '.triangle {\\n'\n          + '  display: inline-block;\\n'\n          + '  width: ' + px(W) + ';\\n'\n          + '  height: ' + px(H) + ';\\n'\n          + '  background: ' + color + ';\\n'\n          + '  clip-path: ' + outerPoly + ';\\n'\n          + '}';\n        triPreview.innerHTML = '<div class=\"tri-demo\"><\/div>';\n        setStyle('.tri-demo{display:inline-block;width:' + px(W) + ';height:' + px(H)\n          + ';background:' + color + ';clip-path:' + outerPoly + ';}');\n        decodeArea.value = css;\n        return;\n      }\n\n      \/\/ --- \u5185\u67a0\u3042\u308a\uff1a\u76f8\u4f3c\u7e2e\u5c0f\u7387\u3092\u8a08\u7b97 ---\n      var r = incircleRadius(s.type, W, H);\n      if (t >= r) {\n        innerWarning.innerHTML = '<p class=\"alert is-ghosted is-caution mt-0.5r\">'\n          + '<i class=\"icon mas ma-error c-caution mr-0.5r\"><\/i>'\n          + '<span>\u5185\u67a0\u304c\u592a\u3059\u304e\u307e\u3059\uff08\u3053\u306e\u5f62\u30fb\u30b5\u30a4\u30ba\u3067\u306f ' + num(r) + 'px \u672a\u6e80\u306b\u3057\u3066\u304f\u3060\u3055\u3044\uff09<\/span><\/p>';\n        \/\/ \u592a\u3059\u304e\u308b\u5834\u5408\u306f\u30d9\u30bf\u5857\u308a\u4e09\u89d2\u5f62\u3068\u3057\u3066\u51fa\u3059\n        css = '.triangle {\\n'\n          + '  display: inline-block;\\n'\n          + '  width: ' + px(W) + ';\\n'\n          + '  height: ' + px(H) + ';\\n'\n          + '  background: ' + color + ';\\n'\n          + '  clip-path: ' + outerPoly + ';\\n'\n          + '}';\n        triPreview.innerHTML = '<div class=\"tri-demo\"><\/div>';\n        setStyle('.tri-demo{display:inline-block;width:' + px(W) + ';height:' + px(H)\n          + ';background:' + color + ';clip-path:' + outerPoly + ';}');\n        decodeArea.value = css;\n        return;\n      }\n\n      \/\/ cW = W\/r, cH = H\/r\u3002\u5185\u67a0\u3067\u5f15\u304f\u91cf\u306f cW\u00d7t \/ cH\u00d7t\u3002\n      \/\/ \u4fc2\u6570\u306f\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3060\u3051\u3067\u6c7a\u307e\u308b\u306e\u3067\u3001width \u3092 % \u306b\u5dee\u3057\u66ff\u3048\u3066\u3082\u6709\u52b9\u3002\n      var cW = W \/ r;\n      var cH = H \/ r;\n      var useVarMode = useVar.checked;\n      var X = useVarMode ? varCoord() : pxCoord(t);\n      var Y = useVarMode ? varCoord() : pxCoord(t);\n      var varDecl = useVarMode ? '  --border-width: ' + px(t) + ';\\n' : '';\n      var innerW = useVarMode\n        ? 'calc(' + px(W) + ' - ' + vBare(cW) + ')'\n        : 'calc(' + px(W) + ' - ' + px(cW * t) + ')';\n      var innerH = useVarMode\n        ? 'calc(' + px(H) + ' - ' + vBare(cH) + ')'\n        : 'calc(' + px(H) + ' - ' + px(cH * t) + ')';\n\n      if (hollow) {\n        \/\/ --- \u304f\u308a\u629c\u304d\uff1a1\u8981\u7d20\u30fbpolygon(evenodd, \u5916\u5468 \u2192 \u6a4b \u2192 \u5185\u5468) ---\n        var outerPts = s.poly.map(function (p) {\n          return [(p[0] * 100) + '%', (p[1] * 100) + '%'];\n        });\n        var innerPts = s.inner(X, Y, cW, cH);\n        var pts = []\n          .concat(outerPts)            \/\/ \u5916\u5468\n          .concat([outerPts[0]])       \/\/ \u5916\u5468\u3092\u9589\u3058\u308b\n          .concat(innerPts)            \/\/ \u6a4b\u3092\u6e21\u3063\u3066\u5185\u5468\u3078\n          .concat([innerPts[0]]);      \/\/ \u5185\u5468\u3092\u9589\u3058\u308b\uff08\u6700\u5f8c\u306f\u81ea\u52d5\u3067\u5916\u5468\u59cb\u70b9\u306b\u623b\u308b\uff1d\u6a4b\u3092\u5f80\u5fa9\uff09\n\n        var polyStr = 'polygon(evenodd,\\n    '\n          + pts.map(function (p) { return p[0] + ' ' + p[1]; }).join(',\\n    ')\n          + '\\n  )';\n\n        css = '.triangle {\\n'\n          + varDecl\n          + '  display: inline-block;\\n'\n          + '  width: ' + px(W) + ';\\n'\n          + '  height: ' + px(H) + ';\\n'\n          + '  background: ' + color + ';\\n'\n          + '  clip-path: ' + polyStr + ';\\n'\n          + '}';\n\n        triPreview.innerHTML = '<div class=\"tri-demo\"><\/div>';\n        setStyle('.tri-demo{' + varDecl.replace(\/\\s+\/g, ' ').trim()\n          + 'display:inline-block;width:' + px(W) + ';height:' + px(H)\n          + ';background:' + color + ';clip-path:' + polyStr.replace(\/\\n\\s*\/g, ' ') + ';}');\n        decodeArea.value = css;\n        return;\n      }\n\n      \/\/ --- \u5185\u67a0\uff1a\u5857\u308a\uff08\u89aa + ::after\uff09 ---\n      var pos = s.pos(useVarMode ? vExpr(1) : px(t));\n      var posCss = '';\n      ['top', 'right', 'bottom', 'left', 'transform'].forEach(function (prop) {\n        if (pos[prop] !== undefined) posCss += '  ' + prop + ': ' + pos[prop] + ';\\n';\n      });\n\n      css = '.triangle {\\n'\n        + varDecl\n        + '  position: relative;\\n'\n        + '  display: inline-block;\\n'\n        + '  width: ' + px(W) + ';\\n'\n        + '  height: ' + px(H) + ';\\n'\n        + '  background: ' + color + ';\\n'\n        + '  clip-path: ' + outerPoly + ';\\n'\n        + '}\\n'\n        + '.triangle::after {\\n'\n        + '  content: \"\";\\n'\n        + '  position: absolute;\\n'\n        + posCss\n        + '  width: ' + innerW + ';\\n'\n        + '  height: ' + innerH + ';\\n'\n        + '  background: ' + innerColor + ';\\n'\n        + '  clip-path: ' + outerPoly + ';\\n'\n        + '}';\n\n      triPreview.innerHTML = '<div class=\"tri-demo\"><\/div>';\n      setStyle('.tri-demo{' + varDecl.replace(\/\\s+\/g, ' ').trim()\n        + 'position:relative;display:inline-block;width:' + px(W) + ';height:' + px(H)\n        + ';background:' + color + ';clip-path:' + outerPoly + ';}'\n        + '.tri-demo::after{content:\"\";position:absolute;'\n        + posCss.replace(\/\\n\/g, '').replace(\/^\\s+|\\s{2,}\/g, '')\n        + 'width:' + innerW + ';height:' + innerH + ';background:' + innerColor\n        + ';clip-path:' + outerPoly + ';}');\n      decodeArea.value = css;\n    }\n\n    \/\/ \u30d7\u30ec\u30d3\u30e5\u30fc\u7528\u30b9\u30bf\u30a4\u30eb\u3092\u5dee\u3057\u8fbc\u3080\n    function setStyle(rules) {\n      var st = document.getElementById('triPreviewStyle');\n      if (!st) {\n        st = document.createElement('style');\n        st.id = 'triPreviewStyle';\n        document.head.appendChild(st);\n      }\n      st.textContent = rules;\n    }\n\n    \/\/ ------------------------------------------------------------\n    \/\/  \u30a4\u30d9\u30f3\u30c8\n    \/\/ ------------------------------------------------------------\n    [triWidth, triHeight, innerWidth].forEach(function (el) {\n      el.addEventListener('input', update);\n    });\n    [useInner, innerHollow, useVar].forEach(function (el) {\n      el.addEventListener('change', update);\n    });\n\n    function bindColor(hexInput, pickInput) {\n      hexInput.addEventListener('input', function () {\n        var v = hexInput.value.trim();\n        if (\/^#[0-9a-fA-F]{6}$\/.test(v)) pickInput.value = v.toLowerCase();\n        update();\n      });\n      pickInput.addEventListener('input', function () {\n        hexInput.value = pickInput.value.toUpperCase();\n        update();\n      });\n    }\n    bindColor(triColorHex, triColorPick);\n    bindColor(innerColorHex, innerColorPick);\n\n    \/\/ \u80cc\u666f\u5207\u308a\u66ff\u3048\n    document.querySelectorAll('.bgSwatch').forEach(function (el) {\n      el.addEventListener('click', function () {\n        var bg = el.dataset.bg;\n        if (bg === 'checker') {\n          previewArea.style.background = '';\n          previewArea.style.backgroundImage =\n            'linear-gradient(45deg,#ddd 25%,transparent 25%,transparent 75%,#ddd 75%),'\n            + 'linear-gradient(45deg,#ddd 25%,#fff 25%,#fff 75%,#ddd 75%)';\n          previewArea.style.backgroundSize = '16px 16px';\n          previewArea.style.backgroundPosition = '0 0, 8px 8px';\n        } else {\n          previewArea.style.backgroundImage = 'none';\n          previewArea.style.background = bg;\n        }\n      });\n    });\n\n    \/\/ \u30ea\u30bb\u30c3\u30c8\n    document.getElementById('resetBtn').addEventListener('click', function () {\n      current = 'br';\n      triWidth.value = 240;\n      triHeight.value = 140;\n      triColorHex.value = 'hsl(195, 75%, 89%)';\n      triColorPick.value = 'hsl(195, 75%, 89%)';\n      useInner.checked = true;\n      innerHollow.checked = false;\n      innerWidth.value = 20;\n      innerColorHex.value = 'hsl(224, 26%, 95%)';\n      innerColorPick.value = 'hsl(224, 26%, 95%)';\n      markShape();\n      update();\n      showMessage('\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a\u306b\u623b\u3057\u307e\u3057\u305f', true, 'decodedMessage');\n    });\n\n    \/\/ \u30b3\u30d4\u30fc\n    function copyText(text, label) {\n      if (navigator.clipboard && navigator.clipboard.writeText) {\n        navigator.clipboard.writeText(text).then(function () {\n          showMessage(label + '\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3057\u305f\uff01', true);\n        }).catch(function () { fallbackCopy(text, label); });\n      } else {\n        fallbackCopy(text, label);\n      }\n    }\n    function fallbackCopy(text, label) {\n      var ta = document.createElement('textarea');\n      ta.value = text;\n      ta.style.position = 'fixed';\n      ta.style.left = '-999999px';\n      document.body.appendChild(ta);\n      ta.select();\n      try {\n        document.execCommand('copy');\n        showMessage(label + '\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3057\u305f\uff01', true);\n      } catch (err) {\n        showMessage('\u30b3\u30d4\u30fc\u306b\u5931\u6557\u3057\u307e\u3057\u305f', false);\n      }\n      document.body.removeChild(ta);\n    }\n    function showMessage(msg, ok) {\n      copyMessage.innerHTML = '<p class=\"alert is-ghosted ' + (ok ? 'is-primary' : 'is-caution') + ' mt-0.5r\">'\n        + '<i class=\"icon mas ' + (ok ? 'ma-check_circle c-primary' : 'ma-error c-caution') + ' mr-0.5r\"><\/i>'\n        + '<span>' + msg + '<\/span><\/p>';\n      setTimeout(function () { copyMessage.innerHTML = ''; }, 4000);\n    }\n\n    document.getElementById('copyCssBtn').addEventListener('click', function () {\n      copyText(decodeArea.value, 'CSS');\n    });\n    document.getElementById('copyHtmlBtn').addEventListener('click', function () {\n      copyText('<div class=\"triangle\"><\/div>', 'HTML');\n    });\n\n    \/\/ \u521d\u671f\u8868\u793a\n    markShape();\n    update();\n  });\n<\/script>","protected":false},"excerpt":{"rendered":"CSS\u306e\u4e09\u89d2\u5f62\u30928\u65b9\u5411\uff08\u25b2\u25bc\u25c0\u25b6\u25e4\u25e5\u25e2\u25e3\uff09\u304b\u3089\u9078\u3093\u3067\u751f\u6210\u3059\u308b\u7121\u6599\u30c4\u30fc\u30eb\u3002\u5e45\u30fb\u9ad8\u3055\u30fb\u8272\u306b\u52a0\u3048\u3001\u5916\u5f62\u30b5\u30a4\u30ba\u3092\u5909\u3048\u305a\u306b\u5185\u5074\u3078\u4f5c\u308b\u300c\u5185\u67a0\u300d\u3084\u3001\u5185\u5074\u3092\u900f\u660e\u306b\u304f\u308a\u629c\u3044\u305f\u7dda\u3060\u3051\u306e\u4e09\u89d2\u5f62\u306b\u3082\u5bfe\u5fdc\u3002clip-path\u306e\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3060\u3051\u3067\u4f7f\u3048\u307e\u3059\u3002","protected":false},"author":1,"featured_media":0,"parent":173,"menu_order":30,"comment_status":"closed","ping_status":"closed","template":"templates\/page-converter.php","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,16],"tags":[80,81,72,73,74,75,76,77,78,79],"group":[],"pg":[],"class_list":["post-13628","page","type-page","status-publish","category-html-css","category-tool","tag-80","tag-css","tag-72","tag-73","tag-polygon","tag-75","tag-clip-path","tag-77","tag-html-css","tag-web"],"acf":[],"_links":{"self":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/pages\/13628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/comments?post=13628"}],"version-history":[{"count":0,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/pages\/13628\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/pages\/173"}],"wp:attachment":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/media?parent=13628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/categories?post=13628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/tags?post=13628"},{"taxonomy":"group","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/group?post=13628"},{"taxonomy":"pg","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/pg?post=13628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}