CSS WG Blog Minutes and Resolutions Hamburg F2F May 20…

Minutes and Resolutions Hamburg F2F May 2012: Flexbox

Flexbox: Box Construction

• Resolved: Don’t create anonymous flexbox items that are only whitespace.
• Resolved: A flex item with visibility: collapse stays in box tree, but has special layout: Do layout once normally, then collapse it to a strut of its line’s cross size and lay out again. (This keeps the cross-size stable if the flexbox has only one line.)

Flexbox: Flex Property

• Resolved: Give flex the longhands flex-grow, flex-shrink, and flex-grow.
• Resolved: box-sizing affects flex-basis
• Resolved: Use flex-basis for sizing flex items, even inflexible ones.
• Resolved: Flex items are flexible by default.
• Resolved: On flex items, a flex-basis of auto computes to the computed width or height (as appropriate); on elements that are not flex items, it always computes to auto.

Flexbox: Flex/Cross Sizing

• Resolved: Accept Alex’s new formulation for negative flexibility.
• Resolved: Negative flexibility is 1 by default.
• Resolved: Add new auto keyword as the initial value of min-width and min-height. On CSS2.1 display types it computes to zero; on flex items it is treated as min-content.
• Resolved: For cross-sizing of a flex line, adopt proposal C.

Flexbox: Pagination

• Resolved: break-before/after: always triggers a flex-line break, and all values that trigger fragmentation on an item in a row flexbox get propagated to the flex line.
• Resolved: Make page-breaking algorithms for flexbox informative, as an example; UAs can do better.

Flexbox: Terminology

• Resolved: Rename display:flexbox to display:flex.
• Resolved: Change spec terminology from “flexbox” to “flex container”, and “flexbox item” to “flex item” to be more consistent with other specs.

Full minutes

« Previous article Next article »