CSS Layout Generator
Online CSS layout generator with visual Flexbox and Grid settings, live preview, and CSS copy/download for frontend layout prototyping and teaching demos.
Layout Type
Flexbox Settings
Live Preview
Item 1
Item 2
Item 3
Generated CSS Code
.container {
display: flex;
flex-direction: row;
flex-wrap: nowrap;
justify-content: flex-start;
align-items: stretch;
row-gap: 12px;
column-gap: 12px;
}
.item {
padding: 1rem;
border: 1px solid #d1d5db;
border-radius: 0.5rem;
background-color: #f8fafc;
text-align: center;
}Tool Guide
CSS Layout Generator helps you configure Flexbox and Grid visually, inspect layout behavior in real time, and export CSS that can be pasted directly into your project.
What It Solves
When you need to test alignment values, compare layout strategies, or explain spacing behavior in reviews, this tool gives you a fast visual workflow.
Key Features
- Switch between Flexbox and Grid with one click.
- Preview container behavior and item placement in real time.
- Add or remove preview items to simulate real content density.
- Copy or download generated CSS for delivery and reuse.
How To Use
- Choose a layout mode and set direction, alignment, and template values.
- Review the live preview and adjust item count if needed.
- Check the generated CSS to verify properties and values.
- Copy the code into your project or download it as a CSS file.
Use Cases
- Fast layout prototyping for frontend pages and components
- Alignment and spacing comparison during design review
- Classroom and team training for CSS layout concepts
- Pre-refactor verification of legacy layout parameters
Layout Tips
- Use Flexbox for one-dimensional flow and Grid for two-dimensional structure.
- Prefer semantic expressions such as repeat() and fr units.
- Test multiple item counts to avoid sparse or crowded layouts in production.
- Verify gap, wrap, and alignment values before exporting code.
Privacy Note
Your code is not uploaded. All rendering and CSS generation run locally in your browser.