| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <title>column-count interpolation</title> |
| <link rel="help" href="https://drafts.csswg.org/css-multicol-1/#cc"> |
| <meta name="assert" content="column-count supports animation by computed value"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| |
| <style> |
| .parent { |
| column-count: 30; |
| } |
| .target { |
| column-count: 10; |
| } |
| </style> |
| |
| <body></body> |
| |
| <script> |
| test_interpolation({ |
| property: 'column-count', |
| from: neutralKeyframe, |
| to: '20', |
| }, [ |
| {at: -0.5, expect: '5'}, |
| {at: 0, expect: '10'}, |
| {at: 0.3, expect: '13'}, |
| {at: 0.7, expect: '17'}, |
| {at: 1, expect: '20'}, |
| {at: 1.5, expect: '25'}, |
| ]); |
| |
| test_no_interpolation({ |
| property: 'column-count', |
| from: 'auto', |
| to: '20', |
| }); |
| |
| test_interpolation({ |
| property: 'column-count', |
| from: 'inherit', |
| to: '20', |
| }, [ |
| {at: -0.5, expect: '35'}, |
| {at: 0, expect: '30'}, |
| {at: 0.3, expect: '27'}, |
| {at: 0.7, expect: '23'}, |
| {at: 1, expect: '20'}, |
| {at: 1.5, expect: '15'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'column-count', |
| from: '10', |
| to: '1' |
| }, [ |
| {at: -0.5, expect: '15'}, |
| {at: 0, expect: '10'}, |
| {at: 0.3, expect: '7'}, |
| {at: 0.7, expect: '4'}, |
| // Only positive integers are valid |
| {at: 1, expect: '1'}, |
| {at: 1.5, expect: '1'} |
| ]); |
| |
| test_no_interpolation({ |
| property: 'column-count', |
| from: 'initial', |
| to: '5', |
| }); |
| |
| test_no_interpolation({ |
| property: 'column-count', |
| from: 'unset', |
| to: '5', |
| }); |
| </script> |
