CSS flex-basis Property
Example
Set the initial length of the second flex-item to 100 pixels:
div:nth-of-type(2) {
flex-basis:
100px;
}
Try it Yourself »
Definition and Usage
The flex-basis property specifies the initial length of a flexible item.
Note: If the element is not a flexible item, the flex-basis property has no effect.
| Default value: | auto |
|---|---|
| Inherited: | no |
| Animatable: | yes. Read about animatable Try it |
| Version: | CSS3 |
| JavaScript syntax: | object.style.flexBasis="200px" Try it |
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
Numbers followed by -webkit- or -moz- specify the first version that worked with a prefix.
| Property | |||||
|---|---|---|---|---|---|
| flex-basis | 29.0 21.0 -webkit- |
11.0 | 28.0 18.0 -moz- |
9.0 6.1 -webkit- |
17.0 |
CSS Syntax
flex-basis: number|auto|initial|inherit;
Property Values
| Value | Description | Play it |
|---|---|---|
| number | A length unit, or percentage, specifying the initial length of the flexible item(s) | Demo ❯ |
| auto | Default value. The length is equal to the length of the flexible item. If the item has no length specified, the length will be according to its content | Demo ❯ |
| initial | Sets this property to its default value. Read about initial | |
| inherit | Inherits this property from its parent element. Read about inherit |
Related Pages
CSS Tutorial: CSS Flexible Box
CSS Reference: flex property
CSS Reference: flex-direction property
CSS Reference: flex-flow property
CSS Reference: flex-grow property
CSS Reference: flex-shrink property
CSS Reference: flex-wrap property
HTML DOM reference: flexBasis property
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