Loopcode/16html.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>16. Best Practices in HTML</title>
  <style>
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: 'Segoe UI', sans-serif;
      background: #1cc9be;
      padding: 30px;
    }
    .container {
      background: rgba(255,255,255,0.3);
      padding: 25px;
      border-radius: 15px;
      max-width: 1000px;
      margin: auto;
      box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    }
    h2, h3 {
      color: #180;
      margin-bottom: 15px;
    }
    p {
      font-size: 17px;
      margin-bottom: 12px;
      line-height: 1.6;
    }
    ul {
      margin: 10px 0 20px 20px;
    }
    textarea, iframe {
      width: 100%;
      height: 200px;
      font-size: 16px;
      padding: 10px;
      margin: 10px 0 20px;
      border-radius: 10px;
      border: 2px solid white;
      background: rgba(255,248,240,0.4);
      font-family: monospace;
    }
    button {
      background: #007bff;
      color: white;
      border: none;
      padding: 10px 20px;
      font-size: 15px;
      font-weight: 500;
      border-radius: 8px;
      cursor: pointer;
      margin-bottom: 25px;
      transition: all 0.3s ease-in-out;
    }
    button:hover {
      box-shadow: 0 5px 12px rgba(0,0,0,0.2);
      transform: translateY(-2px);
    }
  </style>
</head>
<body>
  <div class="container">
    <h2>16. Best Practices in HTML</h2>

    <!-- Clean Coding -->
    <h3>I. Clean Coding</h3>
    <p>HTML likhte waqt clean aur readable code likhna zaroori hai:</p>
    <ul>
      <li>Proper indentation aur spacing ka use karo</li>
      <li>Comments se code samajhne mein aasani hoti hai</li>
      <li>Meaningful aur lowercase element & attribute names</li>
    </ul>

    <textarea id="code1">
<!-- Bad HTML -->
<div><h1>Title</h1><p>Content</p></div>

<!-- Good HTML -->
<div>
  <h1>Title</h1>
  <p>Content</p>
</div>
    </textarea>
    <button onclick="runCode('code1', 'output1')">Run Code</button>
    <iframe id="output1"></iframe>

    <!-- Accessibility -->
    <h3>II. Accessibility</h3>
    <p>Web pages ko sabhi users ke liye accessible banana chahiye, including screen reader users:</p>
    <ul>
      <li><strong>alt</strong> attribute images ke liye</li>
      <li><strong>label</strong> with <code>for</code> for form inputs</li>
      <li>Use semantic tags like <code>&lt;header&gt;</code>, <code>&lt;main&gt;</code>, <code>&lt;footer&gt;</code></li>
    </ul>

    <textarea id="code2">
<img src="photo.jpg" alt="A smiling person">

<form>
  <label for="email">Email:</label>
  <input type="email" id="email" name="email">
</form>
    </textarea>
    <button onclick="runCode('code2', 'output2')">Run Code</button>
    <iframe id="output2"></iframe>

    <!-- SEO Friendly HTML -->
    <h3>III. SEO Friendly HTML</h3>
    <p>SEO (Search Engine Optimization) ke liye HTML ka sahi use important hai:</p>
    <ul>
      <li><strong>&lt;title&gt;</strong> and <strong>&lt;meta&gt;</strong> tags zaroori hain</li>
      <li>Use heading hierarchy correctly (H1 to H6)</li>
      <li>Use <code>alt</code> attributes and descriptive link texts</li>
    </ul>

    <textarea id="code3">
<!DOCTYPE html>
<html lang="en">
<head>
  <title>Best Travel Tips</title>
  <meta name="description" content="Explore the best travel tips for safe and affordable journeys.">
</head>
<body>
  <h1>Top 5 Travel Tips</h1>
  <p>Always carry a power bank and ID.</p>
  <a href="details.html">Read more travel advice</a>
</body>
</html>
    </textarea>
    <button onclick="runCode('code3', 'output3')">Run Code</button>
    <iframe id="output3"></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>