CSS flex Property
Example
Let all the flexible items be the same length, regardles of its content:
#main div {
-webkit-flex: 1; /* Safari 6.1+ */
-ms-flex: 1; /* IE 10 */
flex: 1;
}
Try it yourself »
Definition and Usage
The flex property specifies the length of the item, relative to the rest of the flexible items inside the same container.
The flex property is a shorthand for the flex-grow, flex-shrink, and the flex-basis properties.
Note: If the element is not a flexible item, the flex property has no effect.
| Default value: | 0 1 auto |
|---|---|
| Inherited: | no |
| Animatable: | yes, see individual properties. Read about animatable |
| Version: | CSS3 |
| JavaScript syntax: | object.style.flex="1" Try it |
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
Numbers followed by -webkit-, -ms- or -moz- specify the first version that worked with a prefix.
| Property | ||||||
|---|---|---|---|---|---|---|
| flex | 29.0 21.0 -webkit- |
12.0 | 11.0 10.0 -ms- |
28.0 18.0 -moz- |
9.0 6.1 -webkit- |
17.0 |
CSS Syntax
flex: flex-grow flex-shrink flex-basis|auto|initial|inherit;
Property Values
| Value | Description |
|---|---|
| flex-grow | A number specifying how much the item will grow relative to the rest of the flexible items |
| flex-shrink | A number specifying how much the item will shrink relative to the rest of the flexible items |
| flex-basis | The length of the item. Legal values: "auto", "inherit", or a number followed by "%", "px", "em" or any other length unit |
| auto | Same as 1 1 auto. |
| initial | Same as 0 1 auto. Read about initial |
| none | Same as 0 0 auto. |
| inherit | Inherits this property from its parent element. Read about inherit |
Related Pages
CSS Reference: flex-basis 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: flex property
