{"id":9198,"date":"2025-10-02T14:31:35","date_gmt":"2025-10-02T05:31:35","guid":{"rendered":"https:\/\/fastcoding.jp\/blog\/?p=9198"},"modified":"2025-10-08T18:19:34","modified_gmt":"2025-10-08T09:19:34","slug":"%e5%8b%95%e3%81%8d%e3%81%99%e3%81%8e%e3%81%aa%e3%81%84%e3%81%ae%e3%81%8c%e5%bf%83%e5%9c%b0%e3%81%84%e3%81%84%ef%bc%81%e3%81%95%e3%82%8a%e3%81%92%e3%81%aa%e3%81%84js%e3%82%a2%e3%83%8b%e3%83%a1%e3%83%bc","status":"publish","type":"post","link":"https:\/\/fastcoding.jp\/blog\/all\/webdesign\/%e5%8b%95%e3%81%8d%e3%81%99%e3%81%8e%e3%81%aa%e3%81%84%e3%81%ae%e3%81%8c%e5%bf%83%e5%9c%b0%e3%81%84%e3%81%84%ef%bc%81%e3%81%95%e3%82%8a%e3%81%92%e3%81%aa%e3%81%84js%e3%82%a2%e3%83%8b%e3%83%a1%e3%83%bc\/","title":{"rendered":"\u52d5\u304d\u3059\u304e\u306a\u3044\u306e\u304c\u5fc3\u5730\u3044\u3044\uff01\u3055\u308a\u3052\u306a\u3044JS\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u4f5c\u308a\u65b9"},"content":{"rendered":"<div class=\"the_content\">\n<p>\u3053\u3093\u306b\u3061\u306f\u3001Web\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u517c\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2\u306eBigVi\u3067\u3059\u3002\u30db\u30fc\u30c1\u30df\u30f3\u304b\u3089\u65e5\u672c\u306b\u79fb\u308a\u4f4f\u3093\u3067\u3001\u73fe\u5728\u306f\u6771\u4eac\u3067\u66ae\u3089\u3057\u3066\u307e\u3059\u3002\u4eca\u65e5\u306fWeb\u5236\u4f5c\u3067\u3088\u304f\u4f7f\u3046\u300c\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u3044\u65b9\u300d\u306b\u3064\u3044\u3066\u8a71\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u3044\u3063\u3071\u3044\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u3064\u3051\u308b\u3053\u3068\u3082\u3088\u304f\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u300c\u3055\u308a\u3052\u306a\u3055\u300d\u3092\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3001JavaScript\u3092\u4f7f\u3063\u305f\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u76ee\u7acb\u3061\u3059\u304e\u306a\u3044\u3001\u5fc3\u5730\u3088\u3044UI\u3092\u76ee\u6307\u3057\u3066<\/h2>\n\n\n\n<p>Web\u5236\u4f5c\u3092\u3057\u3066\u3044\u308b\u3068\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u300c\u3082\u3063\u3068\u76ee\u7acb\u305f\u305b\u305f\u3044\u300d\u3084\u300c\u52d5\u304d\u3092\u52a0\u3048\u305f\u3044\u300d\u3068\u306e\u4f9d\u983c\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306f\u78ba\u304b\u306b\u76ee\u3092\u5f15\u304d\u307e\u3059\u304c\u3001\u52d5\u304d\u304c\u591a\u3059\u304e\u308b\u3068\u30e6\u30fc\u30b6\u30fc\u304c\u6df7\u4e71\u3057\u305f\u308a\u3001\u30da\u30fc\u30b8\u306e\u8868\u793a\u304c\u91cd\u304f\u306a\u3063\u305f\u308a\u3057\u307e\u3059\u3002\u305d\u3053\u3067\u4f7f\u3046\u306e\u304c\u3001\u8efd\u304f\u3066\u3055\u308a\u3052\u306a\u3044\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30bf\u30a4\u30d4\u30f3\u30b0\u98a8\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p>\u6587\u7ae0\u304c\u4e00\u6c17\u306b\u8868\u793a\u3055\u308c\u308b\u3088\u308a\u3001<strong>\u30bf\u30a4\u30d7\u30e9\u30a4\u30bf\u30fc\u98a8\u306b\u4e00\u6587\u5b57\u305a\u3064\u8868\u793a\u3055\u308c\u308b<\/strong>\u3068\u3001\u4eba\u306f\u81ea\u7136\u306b\u6ce8\u76ee\u3057\u3066\u8aad\u3080\u3088\u3046\u306b\u306a\u308b\u3002\u3068\u304f\u306b\u30ad\u30e3\u30c3\u30c1\u30b3\u30d4\u30fc\u3084\u30b5\u30fc\u30d3\u30b9\u540d\u306e\u7d39\u4ecb\u3067\u52b9\u679c\u304c\u3042\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: xml; title: ; notranslate\" title=\"\">\n&lt;!doctype html&gt;\n&lt;html lang=&quot;ja&quot;&gt;\n&lt;head&gt;\n&lt;meta charset=&quot;utf-8&quot;&gt;\n&lt;title&gt;\u30bf\u30a4\u30d7\u30e9\u30a4\u30bf\u30fc\u98a8&lt;\/title&gt;\n&lt;style&gt;\n  body { font-family: system-ui, -apple-system, sans-serif; padding: 24px; }\n  .typewriter { font: 700 28px\/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre; }\n  .controls { margin-top: 12px; }\n  @media (prefers-reduced-motion: reduce) {\n    .cursor { animation: none !important; }\n  }\n  .cursor { display: inline-block; width: 1ch; }\n  .cursor::after { content: &quot;\u258d&quot;; animation: blink 1s steps(2, jump-none) infinite; }\n  @keyframes blink { 50% { opacity: 0; } }\n&lt;\/style&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n  &lt;div class=&quot;typewriter&quot; id=&quot;tw&quot;&gt;&lt;span class=&quot;cursor&quot;&gt;&lt;\/span&gt;&lt;\/div&gt;\n  &lt;div class=&quot;controls&quot;&gt;\n    &lt;button id=&quot;restart&quot;&gt;Restart&lt;\/button&gt;\n  &lt;\/div&gt;\n\n&lt;script&gt;\n(function(){\n  const el = document.getElementById(&#039;tw&#039;);\n  const text = &quot;\u9759\u304b\u306a\u52d5\u304d\u3067\u3001\u8aad\u307f\u3084\u3059\u3055\u3092\u52a9\u3051\u308b\u3002&quot;;\n  const speed = 80; \/\/ ms per char\n  function typeWriter() {\n    el.textContent = &quot;&quot;;\n    let i = 0;\n    function step(){\n      if (i &lt;= text.length) {\n        el.textContent = text.slice(0, i);\n        i++;\n        setTimeout(step, speed);\n      } else {\n        \/\/ \u672b\u5c3e\u306b\u30ab\u30fc\u30bd\u30eb\u3063\u307d\u3044\u898b\u305f\u76ee\n        el.insertAdjacentHTML(&quot;beforeend&quot;, &#039;&lt;span class=&quot;cursor&quot;&gt;&lt;\/span&gt;&#039;);\n      }\n    }\n    step();\n  }\n  document.getElementById(&#039;restart&#039;).addEventListener(&#039;click&#039;, typeWriter);\n  typeWriter();\n})();\n&lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/pre><\/div>\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_yyeazVX\" src=\"\/\/codepen.io\/anon\/embed\/yyeazVX?height=450&amp;theme-id=1&amp;slug-hash=yyeazVX&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed yyeazVX\" title=\"CodePen Embed yyeazVX\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u80cc\u666f\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u3086\u308b\u3084\u304b\u306a\u5909\u5316<\/h3>\n\n\n\n<p>\u8981\u7d20\u306e\u80cc\u666f\u8272\u304c<strong>\u3068\u3066\u3082\u3086\u3063\u304f\u308a\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3067\u5909\u308f\u308b<\/strong>\u3068\u3001\u843d\u3061\u7740\u3044\u305f\u96f0\u56f2\u6c17\u306b\u306a\u308a\u307e\u3059\u3002\u52d5\u304d\u306f\u5c0f\u3055\u3044\u3051\u3069\u3001\u5370\u8c61\u306f\u5927\u304d\u3044\u3067\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: xml; title: ; notranslate\" title=\"\">\n&lt;div class=&quot;card&quot;&gt;\u3053\u308c\u306f\u30cf\u30c3\u30ad\u30ea\u52d5\u304f\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\uff01&lt;\/div&gt;\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: css; title: ; notranslate\" title=\"\">\n\/* \u753b\u9762\u4e2d\u592e\u306b\u914d\u7f6e\u3059\u308b\u305f\u3081\u306e\u6700\u4f4e\u9650 *\/\nhtml, body {\n  height: 100%;\n}\nbody {\n  margin: 0;\n  display: grid;\n  place-items: center;\n  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;\n  background: #000;\n}\n\n\/* \u306f\u3063\u304d\u308a\u52d5\u304f\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3 *\/\n.card {\n  padding: 40px 56px;\n  border-radius: 16px;\n  color: #fff;\n  font-size: 24px;\n  text-align: center;\n\n  \/* \u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u5f37\u3081\u306e\u8272\u3092\u4e26\u3079\u308b *\/\n  background: linear-gradient(270deg, red, blue, yellow, green);\n  background-size: 200% 200%;\n\n  \/* 6\u79d2\u3067\u5de6\u53f3\u306b\u5f80\u5fa9\uff08\u8ab0\u3067\u3082\u201c\u52d5\u3044\u3066\u308b\u201d\u3068\u5206\u304b\u308b\uff09 *\/\n  animation: gradientShift 6s linear infinite;\n\n  box-shadow: 0 10px 30px rgba(0,0,0,.3);\n}\n\n@keyframes gradientShift {\n  0%   { background-position: 0% 50%; }\n  50%  { background-position: 100% 50%; }\n  100% { background-position: 0% 50%; }\n}\n<\/pre><\/div>\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_XJXjepZ\" src=\"\/\/codepen.io\/anon\/embed\/XJXjepZ?height=450&amp;theme-id=1&amp;slug-hash=XJXjepZ&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed XJXjepZ\" title=\"CodePen Embed XJXjepZ\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u77e5\u30d0\u30c3\u30c1\uff1a\u6570\u5b57\u66f4\u65b0\u3067\u201c\u3061\u3087\u3063\u3068\u5f3e\u3080\u201d<\/h3>\n\n\n\n<p>\u305f\u3060\u6570\u5b57\u304c\u5909\u308f\u308b\u3088\u308a\u3001<strong>\u5c11\u3057\u3060\u3051\u5f3e\u3080<\/strong>\u3068\u300c\u66f4\u65b0\u3055\u308c\u305f\u300d\u3068\u3059\u3050\u308f\u304b\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: xml; title: ; notranslate\" title=\"\">\n&lt;!doctype html&gt;\n&lt;html lang=&quot;ja&quot;&gt;\n&lt;head&gt;\n&lt;meta charset=&quot;utf-8&quot;&gt;\n&lt;title&gt;\u901a\u77e5\u30d0\u30c3\u30b8\uff1a\u307b\u3069\u3088\u3044\u30d0\u30a6\u30f3\u30b9&lt;\/title&gt;\n&lt;style&gt;\n  body { font-family: system-ui; padding: 24px; }\n  .wrap { display: inline-flex; align-items: center; gap: 12px; }\n  .badge {\n    display: inline-grid; place-items: center;\n    min-width: 32px; height: 32px; padding: 0 8px;\n    border-radius: 16px;\n    background: #111; color: #fff; font-weight: 700;\n    will-change: transform;\n    transform-origin: center center;\n    font-size: 16px;\n  }\n\n  .bounce {\n    animation: badge-bounce 0.6s cubic-bezier(.25,1.3,.5,1);\n  }\n\n  \/* \u3084\u308a\u3059\u304e\u306a\u3044\u3051\u3069\u3057\u3063\u304b\u308a\u898b\u3048\u308b\u632f\u308c\u5e45 *\/\n  @keyframes badge-bounce {\n    0%   { transform: translateY(0) scale(1); }\n    20%  { transform: translateY(-18%) scale(1.25); } \/* \u5c11\u3057\u5927\u304d\u304f\u4e0a\u306b *\/\n    40%  { transform: translateY(8%) scale(0.9); }   \/* \u3061\u3087\u3063\u3068\u6f70\u308c\u308b *\/\n    60%  { transform: translateY(-8%) scale(1.1); }  \/* \u8efd\u304f\u8df3\u306d\u8fd4\u308b *\/\n    80%  { transform: translateY(3%) scale(0.97); }  \/* \u6e1b\u8870 *\/\n    100% { transform: translateY(0) scale(1); }      \/* \u623b\u308b *\/\n  }\n&lt;\/style&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n  &lt;div class=&quot;wrap&quot;&gt;\n    &lt;button id=&quot;add&quot;&gt;\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8ffd\u52a0&lt;\/button&gt;\n    &lt;span class=&quot;badge&quot; id=&quot;badge&quot;&gt;0&lt;\/span&gt;\n  &lt;\/div&gt;\n\n&lt;script&gt;\n(function(){\n  const badge = document.getElementById(&#039;badge&#039;);\n  const add = document.getElementById(&#039;add&#039;);\n  add.addEventListener(&#039;click&#039;, () =&gt; {\n    const n = parseInt(badge.textContent || &quot;0&quot;, 10) + 1;\n    badge.textContent = String(n);\n    badge.classList.remove(&#039;bounce&#039;);\n    void badge.offsetWidth; \/\/ reflow\u3067\u30ea\u30bb\u30c3\u30c8\n    badge.classList.add(&#039;bounce&#039;);\n  });\n})();\n&lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/pre><\/div>\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_OPMROym\" src=\"\/\/codepen.io\/anon\/embed\/OPMROym?height=450&amp;theme-id=1&amp;slug-hash=OPMROym&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed OPMROym\" title=\"CodePen Embed OPMROym\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a73\u7d30\u60c5\u5831\u306e\u958b\u9589\u306b\u201c\u6c17\u6301\u3061\u3044\u3044\u77e2\u5370\u201d<\/h3>\n\n\n\n<p>\u30af\u30ea\u30c3\u30af\u3067\u958b\u304fFAQ\u306a\u3069\u306f\u3001<strong>\u77e2\u5370\u304c\u308f\u305a\u304b\u306b\u56de\u308b<\/strong>\u3060\u3051\u3067\u7406\u89e3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002CSS\u3060\u3051\u3067\u5b9f\u88c5\u3067\u304d\u308b\u306e\u3067\u52d5\u4f5c\u3082\u8efd\u3044\u3067\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: xml; title: ; notranslate\" title=\"\">\n&lt;!doctype html&gt;\n&lt;html lang=&quot;ja&quot;&gt;\n&lt;head&gt;\n&lt;meta charset=&quot;utf-8&quot;&gt;\n&lt;title&gt;\u77e2\u5370\u304c\u56de\u8ee2\u3059\u308b\u30b5\u30f3\u30d7\u30eb&lt;\/title&gt;\n&lt;style&gt;\n  body { font-family: system-ui; padding: 24px; }\n  details {\n    width: 560px; border: 1px solid #ddd; border-radius: 12px; padding: 12px 16px;\n  }\n  summary {\n    list-style: none; cursor: pointer; display: flex; align-items: center; gap: 8px; font-size: 18px;\n  }\n  summary::-webkit-details-marker { display: none; }\n\n  .arrow {\n    width: 32px; height: 32px; \/* \u2190 \u5c11\u3057\u5927\u304d\u3081 *\/\n    flex: 0 0 auto;\n    transition: transform .3s ease; \/* \u2190 \u30b9\u30e0\u30fc\u30ba\u306b\u56de\u8ee2 *\/\n    transform-origin: 50% 50%;\n    transform: rotate(0deg); \/* \u9589\u6642\u306f\u300c\u53f3\u5411\u304d\u300d *\/\n  }\n  details&#x5B;open] .arrow {\n    transform: rotate(90deg); \/* \u958b\u6642\u306f\u300c\u4e0b\u5411\u304d\u300d *\/\n  }\n&lt;\/style&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n  &lt;details&gt;\n    &lt;summary&gt;\n      &lt;!-- \u53f3\u5411\u304d\u30b7\u30a7\u30d6\u30ed\u30f3\uff08Material\u306e\u5f62\u306b\u8fd1\u3044\u30d1\u30b9\uff09 --&gt;\n      &lt;svg class=&quot;arrow&quot; viewBox=&quot;0 0 24 24&quot; aria-hidden=&quot;true&quot;&gt;\n        &lt;path d=&quot;M9 6l6 6-6 6&quot; fill=&quot;none&quot; stroke=&quot;currentColor&quot; stroke-width=&quot;2&quot; stroke-linecap=&quot;round&quot; stroke-linejoin=&quot;round&quot;\/&gt;\n      &lt;\/svg&gt;\n      \u3053\u306e\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3001\u91cd\u304f\u306a\u3044\uff1f\n    &lt;\/summary&gt;\n    &lt;p&gt;\u3044\u3044\u3048\u3002CSS\u306e transform \u3060\u3051\u4f7f\u3046\u306e\u3067\u8efd\u3044\u3067\u3059\u3002&lt;\/p&gt;\n  &lt;\/details&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/pre><\/div>\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_YPwGEqq\" src=\"\/\/codepen.io\/anon\/embed\/YPwGEqq?height=450&amp;theme-id=1&amp;slug-hash=YPwGEqq&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed YPwGEqq\" title=\"CodePen Embed YPwGEqq\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<h2 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