Loopcode/13css.html at main · Dharmandra-singh/Loopcode · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-D0ENCWPZL9"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'G-D0ENCWPZL9');
</script>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>13. CSS Animations</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body, html {
      height: 100%;
      font-family: 'Poppins', sans-serif;
      background: linear-gradient(to right, #43cea2, #185a9d);
      color: #333;
      overflow-x: hidden;
    }
    .section {
      background: rgba(255,255,255,0.15);
      margin: 20px auto;
      padding: 20px;
      border-radius: 14px;
      width: 90%;
      max-width: 1000px;
      box-shadow: 0 8px 20px rgba(0,0,0,0.3);
      backdrop-filter: blur(6px);
    }
    h2 {
      font-size: 28px;
      margin-bottom: 20px;
      color: white;
      text-align: center;
    }
    h3 {
      color: #fff;
      margin-top: 30px;
      margin-bottom: 10px;
    }
    p, ul {
      font-size: 17px;
      color: #f1f1f1;
      line-height: 1.6;
      margin-bottom: 15px;
    }
    textarea {
      width: 100%;
      height: 150px;
      padding: 12px;
      font-size: 16px;
      font-family: monospace;
      background-color: rgba(255, 255, 255, 0.1);
      border: 2px solid #fff;
      border-radius: 10px;
      color: #fff;
      margin-bottom: 10px;
    }
    iframe {
      width: 100%;
      height: 150px;
      background: rgba(0,0,0,0.1);
      border: 2px solid white;
      border-radius: 10px;
      margin-top: 10px;
    }
    button {
      padding: 8px 18px;
      font-size: 15px;
      font-weight: 500;
      background-color: #ff5722;
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: transform 0.2s, background-color 0.3s;
      margin-bottom: 20px;
    }
    button:hover {
      background-color: #e64a19;
      transform: scale(1.05);
    }
    button:active {
      transform: scale(0.97);
    }
  </style>
</head>
<body>
  <div class="section">
    <h2>13. CSS Animations</h2>

    <h3>I. @keyframes</h3>
    <p><strong>Explanation:</strong> <code>@keyframes</code> se hum animation ka flow define karte hain — jaise element kaise start karega aur kaise end karega.</p>
    <textarea id="code1">
<style>
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.box {
  width: 150px;
  height: 150px;
  background: orange;
  animation: fadeIn 2s ease-in-out;
}
</style>
<div class="box"></div>
    </textarea>
    <button onclick="runCode('code1', 'output1')">Run Code</button>
    <iframe id="output1"></iframe>

    <h3>II. Animation Properties</h3>
    <p><strong>Explanation:</strong> Animation ke liye kuch important properties hote hain:
    <ul>
      <li><code>animation-name</code>: @keyframes ka naam</li>
      <li><code>animation-duration</code>: Animation kitni der chale</li>
      <li><code>animation-delay</code>: Kab start ho</li>
      <li><code>animation-iteration-count</code>: Kitni baar chale</li>
      <li><code>animation-direction</code>: normal, reverse, alternate</li>
      <li><code>animation-fill-mode</code>: Animation ke baad element ka state</li>
    </ul>
    </p>
    <textarea id="code2">
<style>
@keyframes moveRight {
  from { transform: translateX(0); }
  to { transform: translateX(200px); }
}
.box {
  width: 100px;
  height: 100px;
  background: #3498db;
  animation-name: moveRight;
  animation-duration: 3s;
  animation-delay: 0.5s;
  animation-iteration-count: 2;
  animation-direction: alternate;
  animation-fill-mode: forwards;
}
</style>
<div class="box"></div>
    </textarea>
    <button onclick="runCode('code2', 'output2')">Run Code</button>
    <iframe id="output2"></iframe>

    <h3>III. Animation Timing Functions</h3>
    <p><strong>Explanation:</strong> Timing functions define karti hain animation ki speed curve — jaise slow start, fast end, etc.
    <ul>
      <li><code>linear</code></li>
      <li><code>ease</code></li>
      <li><code>ease-in</code></li>
      <li><code>ease-out</code></li>
      <li><code>ease-in-out</code></li>
    </ul>
    </p>
    <textarea id="code3">
<style>
@keyframes bounce {
  0% { transform: translateY(0); }
  50% { transform: translateY(-60px); }
  100% { transform: translateY(0); }
}
.ball {
  width: 50px;
  height: 50px;
  background: crimson;
  border-radius: 50%;
  animation: bounce 1s ease-in-out infinite;
}
</style>
<div class="ball"></div>
    </textarea>
    <button onclick="runCode('code3', 'output3')">Run Code</button>
    <iframe id="output3"></iframe>

    <h3>IV. Infinite Loop Animations</h3>
    <p><strong>Explanation:</strong> Jab aapko animation continuously chahiye ho, to <code>animation-iteration-count: infinite;</code> use karte hain.</p>
    <textarea id="code4">
<style>
@keyframes rotate360 {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.loader {
  width: 60px;
  height: 60px;
  border: 6px solid lightgray;
  border-top: 6px solid #1cc9be;
  border-radius: 50%;
  animation: rotate360 1s linear infinite;
}
</style>
<div class="loader"></div>
    </textarea>
    <button onclick="runCode('code4', 'output4')">Run Code</button>
    <iframe id="output4"></iframe>
  </div>

  <script>
    function runCode(textareaId, iframeId) {
      const code = document.getElementById(textareaId).value;
      const iframe = document.getElementById(iframeId);
      const doc = iframe.contentDocument || iframe.contentWindow.document;
      doc.open();
      doc.write(code);
      doc.close();
    }
  </script>
</body>
</html>