CSS Program to Grid Dense Fill with Explanation
CSS
Hard
Grid Layout
20 views
1 min read
94 words
This problem helps you practice core CSS fundamentals in a practical way. It builds intuition around dense, grid, item. Let’s break it down step by step so you can implement it confidently.
Problem Statement
Create a grid where some items span columns and use dense packing.
Input Format
No input.
Output Format
Print the HTML+CSS code in one block.
Constraints
Use grid-auto-flow: dense and one item spanning 2 columns.
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>
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; grid-auto-flow: dense; }
.item { border: 1px solid #eee; border-radius: 12px; padding: 12px; }
.wide { grid-column: span 2; background: #eafaf1; }
</style>
</head>
<body>
<div class='grid'>
<div class='item wide'>meetcode wide</div>
<div class='item'>A</div>
<div class='item'>B</div>
<div class='item'>C</div>
<div class='item'>D</div>
</div>
</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
Create a grid where some items span columns and use dense packing.
Input / Output
Output
Print the HTML+CSS code in one block.
Constraints
Use grid-auto-flow: dense and one item spanning 2 columns.
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>
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; grid-auto-flow: dense; }
.item { border: 1px solid #eee; border-radius: 12px; padding: 12px; }
.wide { grid-column: span 2; background: #eafaf1; }
</style>
</head>
<body>
<div class='grid'>
<div class='item wide'>meetcode wide</div>
<div class='item'>A</div>
<div class='item'>B</div>
<div class='item'>C</div>
<div class='item'>D</div>
</div>
</body>
</html>
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