CSS Program to Nth Child Pattern with Explanation
CSS
Hard
CSS Foundations
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1 min read
88 words
This problem helps you practice core CSS fundamentals in a practical way. It builds intuition around even, nth-child, html. Let’s break it down step by step so you can implement it confidently.
Problem Statement
Color every even row in a simple table using :nth-child.
Input Format
No input.
Output Format
Print the HTML+CSS code in one block.
Constraints
Use :nth-child(even) on tr.
Code Solution
This explanation is written for learning purposes and to help beginners understand the concept clearly.
<!doctype html>
<html lang='en'>
<head>
<meta charset='utf-8'>
<meta name='viewport' content='width=device-width, initial-scale=1'>
<title>meetcode</title>
<style>
table { border-collapse: collapse; width: 100%; max-width: 520px; }
th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }
tbody tr:nth-child(even) { background: #f6f8fa; }
</style>
</head>
<body>
<table>
<thead>
<tr><th>Topic</th><th>Level</th></tr>
</thead>
<tbody>
<tr><td>HTML</td><td>Easy</td></tr>
<tr><td>CSS</td><td>Medium</td></tr>
<tr><td>JavaScript</td><td>Hard</td></tr>
<tr><td>Python</td><td>Medium</td></tr>
</tbody>
</table>
</body>
</html>
Output Example
No sample I/O is provided for this question.
Common Mistakes
- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).
Solution Guide
Problem
Color every even row in a simple table using :nth-child.
Input / Output
Output
Print the HTML+CSS code in one block.
Constraints
Use :nth-child(even) on tr.
Details
Common Mistakes
- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).
Official Solution
<!doctype html>
<html lang='en'>
<head>
<meta charset='utf-8'>
<meta name='viewport' content='width=device-width, initial-scale=1'>
<title>meetcode</title>
<style>
table { border-collapse: collapse; width: 100%; max-width: 520px; }
th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }
tbody tr:nth-child(even) { background: #f6f8fa; }
</style>
</head>
<body>
<table>
<thead>
<tr><th>Topic</th><th>Level</th></tr>
</thead>
<tbody>
<tr><td>HTML</td><td>Easy</td></tr>
<tr><td>CSS</td><td>Medium</td></tr>
<tr><td>JavaScript</td><td>Hard</td></tr>
<tr><td>Python</td><td>Medium</td></tr>
</tbody>
</table>
</body>
</html>
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