CSS Multi-column Layout Module Level 1 CR Test Suite

The Number and Width of Columns (18 tests)

Test Refs Flags Info
+ 3 The Number and Width of Columns
multicol-width-001 = Ahem column-width (basic)
  • Tests that column-width is calculated correctly.
multicol-width-002 = Ahem column-width (basic)
  • Tests that column-width is calculated correctly.
multicol-width-ch-001 = column-width (ch units)
multicol-width-count-001 = Ahem column-count and column-width (basic)
+ 3.1 The Inline Size of Columns: the column-width property
column-width-001 Script CSS Animations: column-width animations respond to style changes
column-width-interpolation Script column-width interpolation
  • column-width supports animation by computed value type
multicol-width-invalid-001 = AhemInvalid invalid column-width
  • This test checks that 'column-width: bzzt' is invalid (generating a parsing error) and therefore will be ignored.
multicol-width-large-001 = Ahem large column-width
  • This test checks that a set 'column-width' may be wider (to fill the available space). In this test, the actual column-width will be increased to 12em.
multicol-width-large-002 = Ahem large column-width
  • This test checks that a set 'column-width' equal in width to the whole available space of the multi-column will use it all for its column box.
multicol-width-negative-001 = AhemInvalid negative column-width
  • This test checks that a set 'column-width' can not be negative.
+ 3.2 The Number of Columns: the column-count property
column-count-interpolation Script column-count interpolation
  • column-count supports animation by computed value
multicol-width-count-002 = Ahem column-count and column-width (basic)
with-custom-layout-on-same-element.https =
  • column-count and column-width should only apply to block containers, and not tables, flexboxes, grid, custom layout containers, etc.
flexbox-with-multi-column-property = CSS Flexbox: column-* properties are ignored.
  • This test ensures that column-* properties (in the Multicol module) have no effect on a flex container.
+ 3.3 The column-width and column-count Shorthand: The columns Property
+ 3.4 The Pseudo-algorithm
change-intrinsic-width =
column-count-used-001 = column-count used value when neither column-count nor column-width are auto
intrinsic-width-change-column-count =
large-actual-column-count =
+ 3.5 Stacking Context