The CSS Layout Generator helps you quickly create modern, responsive page layouts using semantic HTML and up-to-date CSS techniques. Instead of relying on outdated <div> - only structures, this tool generates clean layouts built with elements such as headers, main content areas, sidebars, and footers, making your code easier to read, maintain, and extend.

With the generator you can adjust layout options, and customize colors for individual sections like the main content area, left and right sidebars, and footer. As you make changes, the live preview updates instantly, allowing you to see exactly how your layout will look before exporting the code.

Once you’re happy with the result, you can download the generated HTML and CSS files or export a combined version to use directly in your project.

About CSS Layout Generator

This generator creates page layouts by combining semantic HTML elements with modern CSS layout techniques. Based on your selections, the tool builds a structured layout using elements such as <header>, <main>, <aside>, and <footer>, ensuring the output follows current best practices for accessibility and maintainability.

When you adjust layout options—such enabling sidebars, or selecting section colors—the generator dynamically updates the preview in real time. Under the hood, it uses CSS variables to apply styling choices, keeping the generated code clean, readable, and easy to customize after download.

Once your layout is ready, you can export the code as separate HTML and CSS files or as a single combined file. The exported code is intentionally minimal and framework-free, allowing you to drop it directly into any project or extend it further with your own styles and components.

Technical Philosophy

Unlike older layout generators that rely on "floats" or "position: absolute," this architect generates a Holy Grail layout using grid-template-areas. This method provides the most readable and maintainable code possible, allowing developers to change the entire page structure for mobile users by simply reordering a few text strings in the CSS.

Key Features Under the Hood

• Dynamic Fractional Sizing: The "Main" content area utilizes 1fr (one fraction unit), ensuring it intelligently expands to fill all available space not occupied by fixed-width sidebars.
• Hybrid Viewport Engine: The preview window simulates a real browser environment. When you toggle to Mobile View, the engine swaps the desktop grid-template-columns for a single-column stack, ensuring your design is 100% responsive.
• Clean-Code Export: The exported files are purged of any unused CSS classes. If a component (like the Left Sidebar) is disabled, no related CSS is generated, keeping your project's footprint small.

Why CSS Grid?

CSS Grid is the most powerful layout system available in modern browsers. It allows for two-dimensional control (rows and columns simultaneously), which was previously impossible with Flexbox alone. This tool ensures that your generated code follows best practices, including a Box-Sizing Reset to prevent padding from breaking your layout dimensions.