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Online CSS flexbox playground and code generator. Supports all existing flexbox implementations.

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December 19, 2025 - The items laid out as flexible boxes inside the flex container are called flex items (the <article> elements in our example). Bear this terminology in mind as you go through subsequent sections. You can always refer back to it if you get confused about any of the terms being used. Flexbox provides a property called flex-direction that specifies which direction the main axis runs (which direction the flexbox children are laid out in).

An easy to use Flexbox playground to learn CSS Flexbox.

For example, if we have the flex-direction set to row, the main axis is horizontal (left to right unless the direction is set rtl) and the cross direction is vertical (top to bottom) The answer to every layout problem. Like any tool, flexbox has its place in your toolbox, but it's not meant ...

To use flexbox, you must first set an element to display in flex: display: flex;. This will set every direct child of that element to be a flex item. In this playground, we set the .container class to display flex which affects every direct ...

Our CSS Flexbox generator lets you create a layout, and skip knowing the confusing properties and value names (let's be honest the W3C did not make a good job here).

Layout with CSS Flexbox is powerful but complicated. So we made this: a quick flexbox playground for testing your css with flex layout tricks.Get Start

November 20, 2025 - Interactive Flexbox playground to visualize and experiment with flexbox properties in real-time.

To help you understand the Flexbox better, we have written an interactive playground for you.

Interactive tool to learn and experiment with CSS Flexbox properties in real-time

December 23, 2019 - It’s quite simple, just change the direction of the main axis: .navbar { display: flex; flex-direction: column; } ... On the picture, you can see the direction of the Main axis.

March 22, 2025 - So I built a thing to make it a little easier to see what’s going on. It’s an interactive CSS flexbox playground.

Interactive CSS Flexbox Playground · Parent · Children · Container Setup · display · inline-flex · flex-direction · row-reverse · column · column-reverse

April 15, 2025 - Use this free CSS Flexbox Playground to preview layouts, generate code, and explore examples. Perfect for responsive web design and modern front-end developers.

Let's talk about one of the most eye-opening realizations I've had about Flexbox. Suppose I have the following CSS: Copy to clipboard · .item { width: 2000px; } A reasonable person might look at this and say: “alright, so we'll get an item that is 2000 pixels wide”. But will that always be true? Let's test it: Code Playground ·

You can see in the live sample below how this looks. Click "Play" to open the example in the MDN Playground and edit the items or add new items to try out the initial behavior of flexbox:

Railslove is a web consultancy based in Cologne Germany. Our clients hire us to help them building modern web applications. Wochenende focus on creating simple, maintainable and scaleable solutions · Vestibulum id ligula porta felis euismod semper. Cras justo odio, dapibus ac facilisis in, ...