CSS flex-basis Property

Example

Set the initial length of the second flex-item to 80 pixels:

div:nth-of-type(2) {
-webkit-flex-basis: 80px; /* Safari 6.1+ */
flex-basis: 80px;
}

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

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-	6.1 -webkit-	12.10

flex-basis: number|auto|initial|inherit;

Value	Description	Play it
number	A length unit, or percentage, specifying the initial length of the flexible item(s)	Play it »
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	Play it »
initial	Sets this property to its default value. Read about initial	Play it »
inherit	Inherits this property from its parent element. Read about inherit