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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>4. Text Formatting Tags</title>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body, html {
height: 100%;
font-family: 'Poppins', sans-serif;
overflow-x: hidden;
background-color: #1cc9be;
}
.section {
background-color: rgba(255, 255, 255, 0.3);
margin: 20px auto;
padding: 20px;
border-radius: 12px;
width: 90%;
max-width: 1000px;
box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}
h2, h3 {
color: #339;
margin-bottom: 15px;
}
p {
font-size: 18px;
margin-bottom: 20px;
line-height: 1.7;
}
textarea {
width: 100%;
height: 150px;
font-family: monospace;
font-size: 16px;
padding: 10px;
border: 2px solid white;
border-radius: 8px;
margin-top: 10px;
margin-bottom: 10px;
background: rgba(255,248,240,0.4);
}
button {
position: relative;
background-color: #28a745;
color: black;
border: none;
padding: 12px 24px;
font-size: 16px;
font-weight: bold;
border-radius: 12px;
cursor: pointer;
margin-bottom: 20px;
overflow: hidden;
transition: all 0.3s ease;
box-shadow: 0 4px 15px rgba(40, 167, 69, 0.5);
}
button:hover {
background-color: #218838;
box-shadow: 0 0 20px rgba(40, 167, 69, 0.8);
transform: scale(1.05);
}
button:active {
transform: scale(0.92);
}
iframe {
width: 100%;
height: 150px;
background: rgba(255,248,240,0.4);
border: 2px solid white;
border-radius: 8px;
margin-top: 15px;
}
</style>
</head>
<body>
<div class="section">
<h2>4. Text Formatting Tags</h2>
<h3>I. Headings (h1 to h6)</h3>
<p><strong>Explanation:</strong> Headings ka use titles ya subheadings dene ke liye hota hai. <code><h1></code> sabse bada heading hota hai aur <code><h6></code> sabse chhota.</p>
<textarea id="code1">
<!DOCTYPE html>
<html>
<body>
<h1>Heading 1</h1>
<h2>Heading 2</h2>
<h3>Heading 3</h3>
<h4>Heading 4</h4>
<h5>Heading 5</h5>
<h6>Heading 6</h6>
</body>
</html>
</textarea>
<button onclick="runCode('code1', 'output1')">Run Code</button>
<iframe id="output1"></iframe>
<h3>II. Paragraph Tag</h3>
<p><strong>Explanation:</strong> <code><p></code> tag ka use paragraphs banane ke liye hota hai. Ye text ko alag line aur spacing ke sath dikhata hai.</p>
<textarea id="code2">
<!DOCTYPE html>
<html>
<body>
<p>This is a simple paragraph.</p>
<p>Ye dusra paragraph hai.</p>
</body>
</html>
</textarea>
<button onclick="runCode('code2', 'output2')">Run Code</button>
<iframe id="output2"></iframe>
<h3>III. Line Break (br) & Horizontal Line (hr)</h3>
<p><strong>Explanation:</strong><br>
<code><br></code> tag se line break aata hai bina new paragraph ke. <br>
<code><hr></code> se ek horizontal line draw hoti hai jo sections ko separate karti hai.</p>
<textarea id="code3">
<!DOCTYPE html>
<html>
<body>
<p>Line 1<br>Line 2 after line break.</p>
<hr>
<p>Next section after horizontal line.</p>
</body>
</html>
</textarea>
<button onclick="runCode('code3', 'output3')">Run Code</button>
<iframe id="output3"></iframe>
<h3>IV. Bold, Italic, Underline</h3>
<p><strong>Explanation:</strong><br>
<code><b></code> ya <code><strong></code> - Bold text<br>
<code><i></code> ya <code><em></code> - Italic text<br>
<code><u></code> - Underlined text</p>
<textarea id="code4">
<!DOCTYPE html>
<html>
<body>
<p><b>This is bold</b></p>
<p><i>This is italic</i></p>
<p><u>This is underlined</u></p>
</body>
</html>
</textarea>
<button onclick="runCode('code4', 'output4')">Run Code</button>
<iframe id="output4"></iframe>
<h3>V. Superscript & Subscript</h3>
<p><strong>Explanation:</strong><br>
<code><sup></code> - Superscript (upar likhne ke liye)<br>
<code><sub></code> - Subscript (neeche likhne ke liye)</p>
<textarea id="code5">
<!DOCTYPE html>
<html>
<body>
<p>X<sup>2</sup> + Y<sup>2</sup> = Z<sup>2</sup></p>
<p>H<sub>2</sub>O is water</p>
</body>
</html>
</textarea>
<button onclick="runCode('code5', 'output5')">Run Code</button>
<iframe id="output5"></iframe>
</div>
<script>
function runCode(textareaId, iframeId) {
var code = document.getElementById(textareaId).value;
var iframe = document.getElementById(iframeId);
iframe.contentDocument.open();
iframe.contentDocument.write(code);
iframe.contentDocument.close();
}
</script>
</body>
</html>