Loopcode/14html.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>14. HTML Entities</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: 1.5;
    }
    ul {
      margin: 10px 0 20px 20px;
    }
    textarea, iframe {
      width: 100%;
      height: 150px;
      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>14. HTML Entities</h2>

    <!-- Special Characters -->
    <h3>I. Special Characters</h3>
    <p>HTML mein kuch characters jaise <code>&lt;</code>, <code>&gt;</code>, <code>&amp;</code> ko directly likhne se HTML confuse ho sakta hai. Isliye hum <strong>HTML Entities</strong> ka use karte hain.</p>
    <p>Entity ka syntax hota hai: <code>&amp;entity_name;</code> ya <code>&amp;#entity_number;</code></p>

    <ul>
      <li><code>&amp;lt;</code> = &lt;</li>
      <li><code>&amp;gt;</code> = &gt;</li>
      <li><code>&amp;amp;</code> = &amp;</li>
      <li><code>&amp;quot;</code> = "</li>
      <li><code>&amp;copy;</code> = ©</li>
      <li><code>&amp;nbsp;</code> = non-breaking space</li>
    </ul>

    <textarea id="code1">
<p>&lt;p&gt;This is a paragraph.&lt;/p&gt;</p>
<p>5 &gt; 3 and 3 &lt; 5</p>
<p>Use &amp;amp; to write an &amp; sign</p>
<p>&copy; 2025 Dharmandra. All rights reserved.</p>
<p>1&nbsp;&nbsp;&nbsp;2&nbsp;&nbsp;&nbsp;3 (with non-breaking spaces)</p>
    </textarea>
    <button onclick="runCode('code1', 'output1')">Run Code</button>
    <iframe id="output1"></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>