Visually design Flexbox layouts and automatically generate CSS code. Adjust container and item properties in real-time.
/* Container */
.flex-container {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
gap: 10px;
}Adjust container properties to set up your Flexbox layout, and customize individual item properties. Check the live preview and copy the generated CSS code.
It determines the main axis direction of the Flexbox. 'row' arranges items horizontally, 'column' arranges items vertically.
justify-content controls alignment along the main axis, while align-items controls alignment along the cross axis.
flex-grow determines how extra space is distributed, flex-shrink determines how items shrink when space is limited. Higher numbers mean more growth or shrinkage.
It sets the spacing between items. Previously margin was used, but gap makes it simpler to adjust spacing.
Flexbox is a one-dimensional layout system that arranges items inside a container in a row or column direction. flex-direction determines the main axis, justify-content controls alignment along the main axis, and align-items controls alignment along the cross axis. Setting flex-wrap to wrap allows items to automatically move to the next line when they overflow, making responsive layouts easy to implement.
flex-grow determines how remaining space in the container is distributed among items. Items with a value of 1 share the remaining space equally; setting a specific item to 2 gives it twice as much free space. flex-shrink controls how much items shrink when space is limited, and flex-basis defines each item's base size. These three values can be specified together using the shorthand flex: 1 1 auto.
Navigation bars, card grids, sidebar layouts, and many other UI patterns can be easily implemented with Flexbox. For example, to place a logo and menu at opposite ends, use justify-content: space-between. To center a button both vertically and horizontally, combine justify-content: center with align-items: center. Using the gap property keeps consistent spacing between items without using margins, resulting in much cleaner code.