[csswg-drafts] [css-values-5] <progress> requires easing-function? (#10897)

alvaromontoro has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-values-5] <progress> requires easing-function? ==
I was reading the First Public Working Draft of CSS Values and Units Module Level 5 and, in the [section about the `<progress>` type](https://www.w3.org/TR/css-values-5/#progress-type), it indicates that the `easing-function` is required:

```
<progress> = [ <percentage> | <number> | <'animation-timeline'> ]? && by <easing-function>
```

However, in the [examples in the following sections](https://www.w3.org/TR/2024/WD-css-values-5-20240913/#mix), the `by <easing-function>` is omitted in all of them:

```
color: mix(90%, currentcolor, black);
```

It looks like it's optional and the default value is `linear` if none is indicated (I don't know if that is something to call out explicitly.)

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/10897 using your GitHub account


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Received on Sunday, 15 September 2024 19:55:10 UTC