| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <title>column-gap interpolation</title> |
| <link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-column-gap"> |
| <meta name="assert" content="column-gap supports animation by computed value type"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| |
| <style> |
| .parent { |
| column-gap: 90px; |
| } |
| .target { |
| column-count: 2; |
| column-gap: 10px; |
| } |
| .expected div { |
| opacity: 0.7; |
| } |
| .target > div { |
| height: 20px; |
| background-color: black; |
| } |
| .target.expected > div { |
| background-color: green; |
| } |
| </style> |
| |
| <body> |
| <template id='target-template'> |
| <div></div><div></div> |
| </template> |
| </body> |
| |
| <script> |
| test_interpolation({ |
| property: 'column-gap', |
| from: neutralKeyframe, |
| to: '40px', |
| }, [ |
| {at: -0.3, expect: '1px'}, |
| {at: 0, expect: '10px'}, |
| {at: 0.3, expect: '19px'}, |
| {at: 0.6, expect: '28px'}, |
| {at: 1, expect: '40px'}, |
| {at: 1.5, expect: '55px'}, |
| ]); |
| |
| test_no_interpolation({ |
| property: 'column-gap', |
| from: 'initial', |
| to: '20px', |
| }); |
| |
| test_interpolation({ |
| property: 'column-gap', |
| from: 'inherit', |
| to: '20px', |
| }, [ |
| {at: -0.3, expect: '111px'}, |
| {at: 0, expect: '90px'}, |
| {at: 0.3, expect: '69px'}, |
| {at: 0.6, expect: '48px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '0px'}, |
| ]); |
| |
| test_no_interpolation({ |
| property: 'column-gap', |
| from: 'unset', |
| to: '20px', |
| }); |
| |
| test_no_interpolation({ |
| property: 'column-gap', |
| from: 'normal', |
| to: '20px', |
| }); |
| |
| test_interpolation({ |
| property: 'column-gap', |
| from: '0px', |
| to: '100px' |
| }, [ |
| {at: -0.3, expect: '0'}, // column-gap can't be negative. |
| {at: 0, expect: '0'}, |
| {at: 0.3, expect: '30px'}, |
| {at: 0.6, expect: '60px'}, |
| {at: 1, expect: '100px'}, |
| {at: 1.5, expect: '150px'} |
| ]); |
| </script> |
