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;
}

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

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-	11.0 10.0 -ms-	28.0 18.0 -moz-	6.1 -webkit-	12.10

flex: flex-grow flex-shrink flex-basis|auto|initial|inherit;

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