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June 11, 2021 05:55
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Webkit ignores the CSS rule that its selector list contains unknown pseudo element selector
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Webkit Selector List Bug</title> | |
| </head> | |
| <body> | |
| <input type="range" min="0" max="100" /> | |
| <p>Open the devtool & see the rule apply on the slider thumb shadow DOM</p> | |
| <p>According to <a target="_blank" href="https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Selectors">MDN</a>, it | |
| says <quote>"When you group selectors in this way, if any selector is invalid the whole rule will be ignored" | |
| </quote>.</p> | |
| <p>There is a modern solution to solve: <a target="_blank" href="https://web.dev/css-is-and-where/">New CSS functional pseudo-class selectors :is() and :where()</a>. However, it is not work on my latest Firefox & Chrome.</p> | |
| <style> | |
| /* https://css-tricks.com/styling-cross-browser-compatible-range-inputs-css/ */ | |
| input[type=range]::-webkit-slider-thumb { | |
| --rule: 'input[type=range]::-webkit-slider-thumb'; | |
| } | |
| input[type=range]::-moz-range-thumb { | |
| --rule: 'input[type=range]::-moz-range-thumb'; | |
| } | |
| input[type=range]::-webkit-slider-thumb, | |
| input[type=range]::-moz-range-thumb { | |
| --rule: 'input[type=range]::-webkit-slider-thumb, input[type=range]::-moz-range-thumb'; | |
| } | |
| ::-webkit-slider-thumb, | |
| ::-moz-range-thumb { | |
| --rule: '::-webkit-slider-thumb, ::-moz-range-thumb'; | |
| } | |
| </style> | |
| <style> | |
| :is(input[type=range]::-webkit-slider-thumb, input[type=range]::-moz-range-thumb) { | |
| --modern-rule: ':is(input[type=range]::-webkit-slider-thumb, input[type=range]::-moz-range-thumb)'; | |
| } | |
| :where(input[type=range]::-webkit-slider-thumb, input[type=range]::-moz-range-thumb) { | |
| --modern-rule: ':where(input[type=range]::-webkit-slider-thumb, input[type=range]::-moz-range-thumb)'; | |
| } | |
| input[type=range]:is(::-webkit-slider-thumb, ::-moz-range-thumb) { | |
| --modern-rule: 'input[type=range]:is(::-webkit-slider-thumb, ::-moz-range-thumb)'; | |
| } | |
| input[type=range]:where(::-webkit-slider-thumb, ::-moz-range-thumb) { | |
| --modern-rule: 'input[type=range]:where(::-webkit-slider-thumb, ::-moz-range-thumb)'; | |
| } | |
| </style> | |
| </body> | |
| </html> |
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