CSS Flexbox Generator
Visually design CSS flexbox layouts with live preview and generated code.
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Generated CSS
.container {
display: flex;
gap: 16px;
}Advertisement
Property Reference
flex-directionDefines the direction flex items are placed in the container.
justify-contentAligns items along the main axis.
align-itemsAligns items along the cross axis.
align-contentAligns flex lines when there is extra space on the cross axis.
flex-wrapAllows items to wrap onto multiple lines.
gapSets the gap between rows and columns.
Main Axis vs Cross Axis
flex-direction: row (default)
flex-direction: column
What is CSS Flexbox?
CSS Flexible Box Layout, commonly known as Flexbox, is a one-dimensional layout model that provides an efficient way to arrange, distribute, and align elements within a container. It was designed to solve common layout problems like vertical centering, equal-height columns, and responsive grid systems without relying on floats or positioning hacks.
The key idea behind Flexbox is the separation of the container (flex container) and its children (flex items). You apply display: flex to the parent, and the children automatically become flex items that can be aligned and distributed along the main and cross axes.
Flexbox is particularly powerful for component-level layouts such as navigation bars, card layouts, form fields, and modals. For two-dimensional layouts (rows and columns simultaneously), consider pairing Flexbox with CSS Grid.