justify-content property - CSS Reference

Definition and Usage

The CSS justify-content property defines how a browser distributes available space between and around elements when aligning flex items in the main-axis of the current line. The alignment is done after the lengths and auto margins are applied, meaning that, if there is at least one flexible element, with flex-grow different than 0, it will have no effect as there won't be any available space.

Do not assume that this property will only apply on flex containers in the future and therefore do not simply hide it by setting another display value. The CSSWG is working into extending its usage to any block element. The draft specification is still in its very early stage and isn't implement yet.

Initial flex-start
Applies to flex containers
Inherited no
Media visual
Computed Value as specified
Animatable no
Canonical order the unique non-ambiguous order defined by the formal grammar

Syntax

Formal syntax: flex-start | flex-end | center | space-between | space-around

justify-content: flex-start
justify-content: flex-end
justify-content: center
justify-content: space-between
justify-content: space-around
justify-content: inherit

Values

flex-start: The flex items are packed starting from the main-start. Margins of the first flex item is flushed with the main-start edge of the line and each following flex item is flushed with the preceding.
flex-end: The flex items are packed starting from the main-end. The margin edge of the last flex item is flushed with the main-end edge of the line and each preceding flex item is flushed with the following.
center: The flex items are packed toward the center of the line. The flex items are flushed with each other and aligned in the center of the line. Space between the main-start edge of the line and first item and between main-end and the last item of the line is the same.
space-between: Flex items are evenly distributed along the line. The spacing is done such as the space between two adjacent items is the same. Main-start edge and main-end edge are flushed with respectively first and last flex item edges.
space-around: Flex items are evenly distributed so that the space between two adjacent items is the same. The empty space before the first and after the last items equals half of the space between two adjacent items.