| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <title>font-size interpolation</title> |
| <link rel="help" href="https://drafts.csswg.org/css-fonts-3/#propdef-font-size"> |
| <meta name="assert" content="font-size supports animation as length"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| |
| <style> |
| .parent { |
| font-size: 30px; |
| } |
| .target { |
| display: inline-block; |
| font: 10px sans-serif; |
| } |
| .expected { |
| color: green; |
| margin-right: 30px; |
| } |
| </style> |
| |
| <body> |
| <template id="target-template"> |
| <span> |
| <div class="target">Test Text</div> |
| </span> |
| </template> |
| </body> |
| |
| <script> |
| test_interpolation({ |
| property: 'font-size', |
| from: neutralKeyframe, |
| to: '20px', |
| }, [ |
| {at: -2, expect: '0px'}, |
| {at: -0.3, expect: '7px'}, |
| {at: 0, expect: '10px'}, |
| {at: 0.3, expect: '13px'}, |
| {at: 0.6, expect: '16px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '25px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'font-size', |
| from: 'initial', |
| to: '20px', |
| }, [ |
| {at: -2, expect: '8px'}, |
| {at: -0.3, expect: '14.8px'}, |
| {at: 0, expect: '16px'}, |
| {at: 0.3, expect: '17.2px'}, |
| {at: 0.6, expect: '18.4px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '22px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'font-size', |
| from: 'inherit', |
| to: '20px', |
| }, [ |
| {at: -2, expect: '50px'}, |
| {at: -0.3, expect: '33px'}, |
| {at: 0, expect: '30px'}, |
| {at: 0.3, expect: '27px'}, |
| {at: 0.6, expect: '24px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '15px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'font-size', |
| from: 'unset', |
| to: '20px', |
| }, [ |
| {at: -2, expect: '50px'}, |
| {at: -0.3, expect: '33px'}, |
| {at: 0, expect: '30px'}, |
| {at: 0.3, expect: '27px'}, |
| {at: 0.6, expect: '24px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '15px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'font-size', |
| from: '4px', |
| to: '14px' |
| }, [ |
| {at: -2, expect: '0px'}, // CSS font-size can't be negative. |
| {at: -0.3, expect: '1px'}, |
| {at: 0, expect: '4px'}, |
| {at: 0.3, expect: '7px'}, |
| {at: 0.6, expect: '10px'}, |
| {at: 1, expect: '14px'}, |
| {at: 1.5, expect: '19px'}, |
| ]); |
| </script> |
