left-composition.html (2025B)
1 <!DOCTYPE html> 2 <meta charset="UTF-8"> 3 <title>left composition</title> 4 <link rel="help" href="https://drafts.csswg.org/css-position-3/#propdef-left"> 5 <meta name="assert" content="left support animation"> 6 7 <script src="/resources/testharness.js"></script> 8 <script src="/resources/testharnessreport.js"></script> 9 <script src="/css/support/interpolation-testcommon.js"></script> 10 11 <body> 12 <script> 13 test_composition({ 14 property: 'left', 15 underlying: '50px', 16 addFrom: '100px', 17 addTo: '200px', 18 }, [ 19 {at: -0.3, expect: '120px'}, 20 {at: 0, expect: '150px'}, 21 {at: 0.5, expect: '200px'}, 22 {at: 1, expect: '250px'}, 23 {at: 1.5, expect: '300px'}, 24 ]); 25 26 test_composition({ 27 property: 'left', 28 underlying: '100px', 29 addFrom: '10px', 30 addTo: '2px', 31 }, [ 32 {at: -0.5, expect: '114px'}, 33 {at: 0, expect: '110px'}, 34 {at: 0.5, expect: '106px'}, 35 {at: 1, expect: '102px'}, 36 {at: 1.5, expect: '98px'}, 37 ]); 38 39 test_composition({ 40 property: 'left', 41 underlying: '10%', 42 addFrom: '100px', 43 addTo: '20%', 44 }, [ 45 {at: -0.3, expect: 'calc(130px + 4%)'}, 46 {at: 0, expect: 'calc(100px + 10%)'}, 47 {at: 0.5, expect: 'calc(50px + 20%)'}, 48 {at: 1, expect: '30%'}, 49 {at: 1.5, expect: 'calc(-50px + 40%)'}, 50 ]); 51 52 test_composition({ 53 property: 'left', 54 underlying: '10%', 55 addFrom: '100px', 56 addTo: '-10%', 57 }, [ 58 {at: -0.3, expect: 'calc(130px + 13%)'}, 59 {at: 0, expect: 'calc(100px + 10%)'}, 60 {at: 0.5, expect: 'calc(50px + 5%)'}, 61 {at: 1, expect: '0%'}, 62 {at: 1.5, expect: 'calc(-50px - 5%)'}, 63 ]); 64 65 test_composition({ 66 property: 'left', 67 underlying: '50px', 68 addFrom: '100px', 69 replaceTo: '200px', 70 }, [ 71 {at: -0.3, expect: '135px'}, 72 {at: 0, expect: '150px'}, 73 {at: 0.5, expect: '175px'}, 74 {at: 1, expect: '200px'}, 75 {at: 1.5, expect: '225px'}, 76 ]); 77 78 test_composition({ 79 property: 'left', 80 underlying: '100px', 81 addFrom: '100px', 82 addTo: 'auto', 83 }, [ 84 {at: -0.3, expect: '200px'}, 85 {at: 0, expect: '200px'}, 86 {at: 0.5, expect: 'auto'}, 87 {at: 1, expect: 'auto'}, 88 {at: 1.5, expect: 'auto'}, 89 ]); 90 </script> 91 </body>