Is this Flexbox code compatible with mobile browsers?

Yes, standard CSS Flexbox properties are supported across 99.8% of modern mobile and desktop browsers worldwide.

CSS Tools• Interactive

CSS Flexbox Playground & Code Generator

Master CSS Flexbox layout visually. Adjust flex container properties and item alignments in real time, inspect responsive behavior, and copy production-ready CSS.

Generated entirely in your browser. No styles or data sent to servers.

CSS Flexbox Playground

Visual interactive CSS layout, animation, color and shape generators with real-time browser preview.

Flex Direction

Justify Content

Align Items

Gap: 16px

Items Count: 4

.container {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

How to Use CSS Flexbox Playground & Generator

Configure Container

Select flex direction, justify-content alignment, and align-items distribution.

Adjust Items & Gap

Add or remove items, tune the gap slider, and inspect live layout reflow.

Export CSS

Click Copy CSS to copy the generated rules directly to your stylesheet.

About CSS Flexbox Playground & Generator

Generates standard CSS Flexible Box Layout module rules, applying display: flex with vendor-neutral standard properties for modern responsive UI construction.

Supported Formats

CSS3

Operational Limits

•Renders modern CSS Flexbox syntax supported by all modern evergreen browsers.

Key Features

Interactive flex-direction controls (row, row-reverse, column, column-reverse)
All justify-content alignment options with live visualization
Align-items and align-content controls
Customizable gap and item counts
One-click CSS code copy

Frequently Asked Questions

justify-content aligns items along the primary axis (horizontal by default in row layout), while align-items controls alignment along the cross axis (vertical by default).

Related Tools

CSS Grid Layout Generator

Visual CSS Grid layout builder: customize rows, columns, fractional tracks (fr), pixel gaps, and export clean CSS grid template rules.

CSS ToolsOpen Tool

Developer Essential Local

CSS Clamp() Calculator for Fluid Typography

Calculate fluid typography and spacing clamp() formulas: define minimum/maximum font size and viewport widths with instant CSS generation.

CSS ToolsOpen Tool

Local

CSS Border Radius & Blob Generator

Visual 8-value advanced CSS border-radius generator to create organic blob shapes, smooth pill buttons, and asymmetric rounded corners.

CSS ToolsOpen Tool