Click controls below to build your flexbox layout. Copy production CSS instantly.
Build responsive Flexbox layouts visually with our free CSS Flexbox Generator. Instead of memorizing Flexbox properties and values, you can interactively customize your layout, preview the changes instantly, and copy clean production-ready CSS with a single click. Whether you're creating navigation bars, responsive grids, card layouts, dashboards, landing pages, or application interfaces, this tool helps you design Flexbox layouts faster and more accurately.
CSS Flexbox is one of the most powerful layout systems available in modern web development. It allows developers to align, distribute, and organize elements efficiently across different screen sizes. Our generator eliminates the guesswork by providing live controls and instant visual feedback while generating optimized CSS code.
Defines the primary direction of the flex container. Choose between row, row-reverse, column, and column-reverse to control how items are displayed.
Controls whether Flexbox items stay on a single line or wrap onto multiple rows or columns when space becomes limited.
Aligns items along the main axis and controls how free space is distributed between them.
Controls how Flexbox items are aligned along the cross axis inside the container.
When Flexbox items wrap onto multiple rows, Align Content controls the spacing between those rows.
.container{
display:flex;
flex-direction:row;
flex-wrap:nowrap;
justify-content:flex-start;
align-items:stretch;
gap:12px;
}
Flexbox simplifies responsive web design by making it easy to align and distribute elements without relying on floats or complex positioning. It automatically adapts layouts across different screen sizes while reducing the amount of CSS required.
The following table summarizes the most commonly used Flexbox properties. Use it as a quick reference while building responsive layouts.
| Property | Purpose | Common Values |
|---|---|---|
| display | Enables Flexbox | flex, inline-flex |
| flex-direction | Main axis direction | row, column, row-reverse, column-reverse |
| justify-content | Horizontal alignment | center, space-between, space-around |
| align-items | Vertical alignment | stretch, center, flex-start |
| align-content | Align wrapped rows | center, space-between |
| flex-wrap | Wrap items | nowrap, wrap |
| gap | Spacing between items | 8px, 12px, 20px |
Flexbox is used in thousands of responsive websites. Here are some common layouts you can build using this generator.
| Feature | Flexbox | CSS Grid |
|---|---|---|
| Layout Type | One-dimensional | Two-dimensional |
| Best For | Rows or columns | Entire page layouts |
| Learning Curve | Easy | Moderate |
| Responsive Design | Excellent | Excellent |
| Navigation Bars | Ideal | Possible |
| Card Layouts | Excellent | Excellent |
CSS Flexbox is supported by all modern web browsers including:
Only very old browsers such as Internet Explorer 9 and earlier have limited or no Flexbox support.
align-content without enabling wrapping.justify-content with align-items.display:flex.This tool is suitable for developers of all experience levels.
Writing Flexbox CSS manually often involves switching between documentation, experimenting with different property values, and repeatedly refreshing your browser. Our visual Flexbox Generator speeds up this workflow by letting you adjust layout properties in real time while instantly generating production-ready CSS. Whether you're building a simple navigation bar or a complex responsive dashboard, the tool helps you understand how each Flexbox property affects the final layout.
Because every change updates both the live preview and the generated CSS simultaneously, developers can learn Flexbox faster while creating layouts more efficiently. This makes the tool valuable not only for beginners but also for experienced frontend developers who want to prototype layouts quickly.
flex-direction: row for desktop layouts.column on smaller screens using media queries.justify-content: space-between for navigation menus.align-items: center with justify-content: center for perfectly centered content.flex-wrap: wrap when displaying cards or product listings.gap values instead of individual margins.Before working with Flexbox, it's helpful to understand the core concepts used throughout the specification. Knowing these terms makes it easier to understand tutorials and debug layout issues.
| Term | Description |
|---|---|
| Flex Container | The parent element with display:flex. |
| Flex Item | Any direct child inside a flex container. |
| Main Axis | The direction controlled by flex-direction. |
| Cross Axis | The axis perpendicular to the main axis. |
| Main Start | Beginning of the main axis. |
| Main End | End of the main axis. |
| Gap | Space between flex items. |
Each Flexbox property controls a different aspect of your layout. Understanding how they work together helps create responsive designs quickly.
Turns an element into a Flexbox container so all direct child elements become flexible items.
Controls whether items are arranged horizontally or vertically.
Distributes free space along the main axis.
Controls how items align vertically (or horizontally when using column layouts).
Adds consistent spacing between Flexbox items without using margins.
flex-wrap: wrap for smaller screens.Flexbox is a CSS layout model that arranges elements in one dimension, either as rows or columns.
justify-content controls alignment on the main axis, while align-items controls alignment on the cross axis.
flex-grow determines how much available space an item should occupy relative to other items.
flex-shrink determines how items shrink when there is insufficient space.
flex-basis defines the initial size of a flex item before available space is distributed.
| Feature | Flexbox | Grid | Float | Inline Block |
|---|---|---|---|---|
| Responsive | ★★★★★ | ★★★★★ | ★★ | ★★★ |
| Easy Alignment | ★★★★★ | ★★★★★ | ★ | ★★ |
| Learning Curve | Easy | Medium | Hard | Easy |
Use both justify-content:center and align-items:center.
Enable flex-wrap:wrap or reduce item width.
Make sure the parent element has display:flex.
Use align-items:stretch or specify consistent heights.
Check the align-content property when wrapping is enabled.