| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <style> |
| .parent { |
| --percentage: 30%; |
| } |
| .target { |
| --percentage: 10%; |
| } |
| </style> |
| <body> |
| <script src="../interpolation/resources/interpolation-test.js"></script> |
| <script> |
| CSS.registerProperty({ |
| name: '--percentage', |
| syntax: '<percentage>', |
| initialValue: '40%', |
| inherits: false, |
| }); |
| |
| assertInterpolation({ |
| property: '--percentage', |
| from: neutralKeyframe, |
| to: '20%', |
| }, [ |
| {at: -0.3, is: '7%'}, |
| {at: 0, is: '10%'}, |
| {at: 0.5, is: '15%'}, |
| {at: 1, is: '20%'}, |
| {at: 1.5, is: '25%'}, |
| ]); |
| |
| assertInterpolation({ |
| property: '--percentage', |
| from: 'initial', |
| to: '20%', |
| }, [ |
| {at: -0.3, is: '46%'}, |
| {at: 0, is: '40%'}, |
| {at: 0.5, is: '30%'}, |
| {at: 1, is: '20%'}, |
| {at: 1.5, is: '10%'}, |
| ]); |
| |
| assertInterpolation({ |
| property: '--percentage', |
| from: 'inherit', |
| to: '20%', |
| }, [ |
| {at: -0.3, is: '33%'}, |
| {at: 0, is: '30%'}, |
| {at: 0.5, is: '25%'}, |
| {at: 1, is: '20%'}, |
| {at: 1.5, is: '15%'}, |
| ]); |
| |
| assertInterpolation({ |
| property: '--percentage', |
| from: 'unset', |
| to: '20%', |
| }, [ |
| {at: -0.3, is: '46%'}, |
| {at: 0, is: '40%'}, |
| {at: 0.5, is: '30%'}, |
| {at: 1, is: '20%'}, |
| {at: 1.5, is: '10%'}, |
| ]); |
| |
| assertInterpolation({ |
| property: '--percentage', |
| from: '-10%', |
| to: '10%', |
| }, [ |
| {at: -0.3, is: '-16%'}, |
| {at: 0, is: '-10%'}, |
| {at: 0.5, is: '0%'}, |
| {at: 1, is: '10%'}, |
| {at: 1.5, is: '20%'}, |
| ]); |
| </script> |
| </body> |
