{"id":3110,"date":"2025-10-29T01:19:03","date_gmt":"2025-10-29T01:19:03","guid":{"rendered":"https:\/\/satokotadesign.com\/blog\/?p=3110"},"modified":"2025-10-29T01:19:03","modified_gmt":"2025-10-29T01:19:03","slug":"analog-clock","status":"publish","type":"post","link":"https:\/\/satokotadesign.com\/blog\/analog-clock\/","title":{"rendered":"\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3067\u4f5c\u308b\u300c\u30a2\u30ca\u30ed\u30b0\u6642\u8a08\u300d\uff5cHTML\u30fbCSS\u30fbJavaScript\u3067\u30ea\u30a2\u30eb\u306b\u52d5\u304f\u6642\u8a08\u3092\u5b9f\u88c5"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u9759\u5ca1\u770c\u6d5c\u677e\u5e02\u3067WEB\u30c7\u30b6\u30a4\u30ca\u30fc\u3092\u3057\u3066\u3044\u307e\u3059\u5c0f\u7027\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3001Web\u30b5\u30a4\u30c8\u306b<span class=\"sc_marker-animation\">\u300c\u30ea\u30a2\u30eb\u306a\u30a2\u30ca\u30ed\u30b0\u6642\u8a08\u300d<\/span>\u3092\u5b9f\u88c5\u3057\u3066\u307f\u305f\u3044\u65b9\u306b\u5411\u3051\u3066\u3001HTML\u30fbCSS\u30fbJavaScript\u3092\u4f7f\u3063\u3066\u52d5\u304f\u6642\u8a08\u3092\u3064\u304f\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<br \/>\nJavaScript\u306eDate()\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3048\u3070\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u6642\u9593\u3092\u53d6\u5f97\u3057\u3066\u91dd\u3092\u52d5\u304b\u3059\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<br \/>\nCSS\u3067\u30c7\u30b6\u30a4\u30f3\u3092\u6574\u3048\u308b\u3053\u3068\u3067\u3001\u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30f3\u30c8\u3084\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u753b\u9762\u306a\u3069\u306b\u3082\u5fdc\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 class=\"sc_heading solid blue\"><span class=\"sc_title\">HTML\u69cb\u9020\u3092\u3064\u304f\u308b<\/span><\/h2>\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"gbPjjKJ\" data-pen-title=\"Untitled\" data-user=\"ekwwawpb-the-styleful\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ekwwawpb-the-styleful\/pen\/gbPjjKJ\"><br \/>\n  Untitled<\/a> by \u5c0f\u7027\u8ce2 (<a href=\"https:\/\/codepen.io\/ekwwawpb-the-styleful\">@ekwwawpb-the-styleful<\/a>)<br \/>\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n<p>      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script><\/p>\n<p>\u307e\u305a\u306f\u6642\u8a08\u306e\u91dd\u3068\u76e4\u9762\u3092\u5b9a\u7fa9\u3059\u308bHTML\u3067\u3059\u3002<br \/>\n\u91dd\u30923\u3064\uff08\u6642\u91dd\u30fb\u5206\u91dd\u30fb\u79d2\u91dd\uff09\u7528\u610f\u3057\u3001\u305d\u308c\u305e\u308c\u3092\u4e2d\u592e\u306b\u914d\u7f6e\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"line-numbers\" ><code class=\"language-markup\">&lt;div class=&quot;clock&quot;&gt;\r\n  &lt;div class=&quot;hand hour&quot;&gt;&lt;\/div&gt;\r\n  &lt;div class=&quot;hand minute&quot;&gt;&lt;\/div&gt;\r\n  &lt;div class=&quot;hand second&quot;&gt;&lt;\/div&gt;\r\n  &lt;div class=&quot;center-dot&quot;&gt;&lt;\/div&gt;\r\n&lt;\/div&gt;<\/code><\/pre>\n<h2 class=\"sc_heading solid blue\"><span class=\"sc_title\">CSS\u3067\u30c7\u30b6\u30a4\u30f3\u3092\u6574\u3048\u308b<\/span><\/h2>\n<p>\u76e4\u9762\u306e\u898b\u305f\u76ee\u3068\u91dd\u306e\u9577\u3055\u30fb\u56de\u8ee2\u8ef8\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<br \/>\n\u4e2d\u592e\u306e\u56de\u8ee2\u57fa\u70b9\u3092\u4fdd\u3064\u305f\u3081\u306b\u3001\u91dd\u306etransform-origin\u3092\u4e0b\u7aef\u306b\u6307\u5b9a\u3059\u308b\u306e\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<pre class=\"line-numbers\"><code class=\"language-css\">body {\r\n  margin: 0;\r\n  height: 100vh;\r\n  display: flex;\r\n  justify-content: center;\r\n  align-items: center;\r\n  background: #111;\r\n}\r\n\r\n.clock {\r\n  position: relative;\r\n  width: 250px;\r\n  height: 250px;\r\n  border: 8px solid #fff;\r\n  border-radius: 50%;\r\n  background: radial-gradient(circle at center, #222 60%, #111);\r\n  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);\r\n}\r\n\r\n.hand {\r\n  position: absolute;\r\n  bottom: 50%;\r\n  left: 50%;\r\n  transform-origin: bottom center;\r\n  transform: translateX(-50%) rotate(0deg);\r\n  border-radius: 4px;\r\n}\r\n\r\n.hour {\r\n  width: 6px;\r\n  height: 60px;\r\n  background: #fff;\r\n}\r\n\r\n.minute {\r\n  width: 4px;\r\n  height: 90px;\r\n  background: #ccc;\r\n}\r\n\r\n.second {\r\n  width: 2px;\r\n  height: 110px;\r\n  background: #ff5252;\r\n}\r\n\r\n.center-dot {\r\n  position: absolute;\r\n  width: 14px;\r\n  height: 14px;\r\n  background: #ff5252;\r\n  border-radius: 50%;\r\n  top: 50%;\r\n  left: 50%;\r\n  transform: translate(-50%, -50%);\r\n}<\/code><\/pre>\n<h2 class=\"sc_heading solid blue\"><span class=\"sc_title\">JavaScript\u3067\u91dd\u3092\u52d5\u304b\u3059<\/span><\/h2>\n<p>setInterval()\u3067\u6bce\u79d2\u66f4\u65b0\u3057\u3001Date()\u304b\u3089\u73fe\u5728\u6642\u523b\u3092\u53d6\u5f97\u3057\u3066\u91dd\u3092\u56de\u8ee2\u3055\u305b\u307e\u3059\u3002<br \/>\nCSS\u306etransform: rotate()\u3092\u4f7f\u3063\u3066\u52d5\u7684\u306b\u91dd\u3092\u56de\u3059\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<pre class=\"line-numbers\"><code class=\"language-js\">function updateClock() {\r\n  const now = new Date();\r\n  const seconds = now.getSeconds();\r\n  const minutes = now.getMinutes();\r\n  const hours = now.getHours();\r\n\r\n  const secDeg = seconds * 6; \/\/ 360\u00b0 \/ 60\r\n  const minDeg = minutes * 6 + seconds * 0.1;\r\n  const hourDeg = (hours % 12) * 30 + minutes * 0.5;\r\n\r\n  document.querySelector(\".second\").style.transform = `translateX(-50%) rotate(${secDeg}deg)`;\r\n  document.querySelector(\".minute\").style.transform = `translateX(-50%) rotate(${minDeg}deg)`;\r\n  document.querySelector(\".hour\").style.transform = `translateX(-50%) rotate(${hourDeg}deg)`;\r\n}\r\n\r\nsetInterval(updateClock, 1000);\r\nupdateClock();<\/code><\/pre>\n<h2 class=\"sc_heading solid blue\"><span class=\"sc_title\">\u767a\u5c55\uff1a\u30b9\u30e0\u30fc\u30ba\u79d2\u91dd\u4ed8\u304d\u30a2\u30ca\u30ed\u30b0\u6642\u8a08<\/span><\/h2>\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"myVjjjg\" data-pen-title=\"Untitled\" data-user=\"ekwwawpb-the-styleful\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ekwwawpb-the-styleful\/pen\/myVjjjg\"><br \/>\n  Untitled<\/a> by \u5c0f\u7027\u8ce2 (<a href=\"https:\/\/codepen.io\/ekwwawpb-the-styleful\">@ekwwawpb-the-styleful<\/a>)<br \/>\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n<p>      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script><\/p>\n<h2 class=\"sc_heading solid blue\"><span class=\"sc_title\">\u307e\u3068\u3081<\/span><\/h2>\n<p>HTML\u30fbCSS\u30fbJavaScript\u306e3\u3064\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u5b9f\u969b\u306b\u52d5\u304f\u30a2\u30ca\u30ed\u30b0\u6642\u8a08\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3057\u305f\u3002<br \/>\n\u4eca\u56de\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u3001Date()\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306b\u91dd\u306e\u89d2\u5ea6\u3092\u7b97\u51fa\u3059\u308b\u3053\u3068\u3002<br \/>\n\u30b5\u30a4\u30c8\u306e\u30b5\u30a4\u30c9\u30d0\u30fc\u3084\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u753b\u9762\u306a\u3069\u306b\u5fdc\u7528\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u52d5\u304d\u306e\u3042\u308b\u5370\u8c61\u3092\u4e0e\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><figure id=\"attachment_475\" aria-describedby=\"caption-attachment-475\" style=\"width: 1500px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/satokotadesign.com\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/satokotadesign.com\/blog\/wp-content\/uploads\/2022\/10\/bnr.jpg\" alt=\"\u9759\u5ca1\u770c\u6d5c\u677e\u5e02\u3067\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u5236\u4f5c\u306a\u3089satokotadesign\" width=\"1500\" height=\"500\" class=\"size-full wp-image-475\" srcset=\"https:\/\/satokotadesign.com\/blog\/wp-content\/uploads\/2022\/10\/bnr.jpg 1500w, https:\/\/satokotadesign.com\/blog\/wp-content\/uploads\/2022\/10\/bnr-500x167.jpg 500w, https:\/\/satokotadesign.com\/blog\/wp-content\/uploads\/2022\/10\/bnr-1024x341.jpg 1024w, https:\/\/satokotadesign.com\/blog\/wp-content\/uploads\/2022\/10\/bnr-768x256.jpg 768w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><\/a><figcaption id=\"caption-attachment-475\" class=\"wp-caption-text\"><a href=\"https:\/\/satokotadesign.com\/contact\/\" target=\"_blank\" rel=\"noopener\">\u9759\u5ca1\u770c\u6d5c\u677e\u5e02\u3067\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u5236\u4f5c\u306a\u3089satokotadesign<\/a><\/figcaption><\/figure><\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u9759\u5ca1\u770c\u6d5c\u677e\u5e02\u3067WEB\u30c7\u30b6\u30a4\u30ca\u30fc\u3092\u3057\u3066\u3044\u307e\u3059\u5c0f\u7027\u3067\u3059\u3002 \u4eca\u56de\u306f\u3001Web\u30b5\u30a4\u30c8\u306b\u300c\u30ea\u30a2\u30eb\u306a\u30a2\u30ca\u30ed\u30b0\u6642\u8a08\u300d\u3092\u5b9f\u88c5\u3057\u3066\u307f\u305f\u3044\u65b9\u306b\u5411\u3051\u3066\u3001HTML\u30fbCSS\u30fbJavaScript\u3092\u4f7f\u3063\u3066\u52d5\u304f\u6642\u8a08\u3092\u3064\u304f\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002 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