LGTM3 as you already have two LGTMs on the original thread. @Mike Taylor <[email protected]> @Daniel Bratell <[email protected]> would you mind repeating your LGTMs here and on the chromestatus entry?
On Thu, Nov 6, 2025 at 9:04 PM Minseong Kim <[email protected]> wrote: > *Contact emails* > [email protected] > > *Specification* > https://www.w3.org/TR/css-text-4/#propdef-letter-spacing > https://www.w3.org/TR/css-text-4/#propdef-word-spacing > > *Summary* > Enables percentage values for the letter-spacing and word-spacing CSS > property, as defined in the CSS Text Module Level 4 spec. Percentage values > are calculated relative to the advance measure of the space character > (U+0020). This gives developers more robust and flexible control over > typography, particularly in responsive designs where text spacing needs to > adapt to different viewports and font sizes. > > *Blink component* > Blink>Layout>Inline > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ELayout%3EInline%22> > > *Web Feature ID* > letter-spacing <https://webstatus.dev/features/letter-spacing> > > *Motivation* > The 'letter-spacing' and 'word-spacing' properties currently only accept > fixed length values (e.g. px, em), which are inflexible in responsive > designs. When font sizes or container dimensions change, this fixed spacing > can become disproportionate, forcing developers to write complex media > queries or use JavaScript to maintain readable text. Introducing percentage > values allows spacing to be defined relative to font-intrinsic metrics. > This enables both letter and word spacing to scale proportionally with the > font, simplifying the creation of robust and visually consistent typography > across all devices without extra code. > > *Initial public proposal* > *No information provided* > > *Search tags* > letter-spacing <https://chromestatus.com/features#tags:letter-spacing>, > word-spacing <https://chromestatus.com/features#tags:word-spacing> > > *TAG review* > *No information provided* > > *TAG review status* > Not applicable > > *Risks* > > > *Interoperability and Compatibility* > Risks are low. This is a support for new value of CSS properties. So sites > not using properties won't be affected. Firefox and Safari has supported > this feature for years. > > *Gecko*: Shipped/Shipping Firefox is failing so many letter-spacing > tests: > https://wpt.fyi/results/css/css-text/letter-spacing?label=experimental&label=master&aligned. > But those are related the line ending or boundary handling of > letter-spacing, not the percentage values. Related discussion: > https://github.com/w3c/csswg-drafts/issues/1518 > > *WebKit*: Shipped/Shipping (https://github.com/WebKit/WebKit/pull/18771) > > *Web developers*: No signals (https://issues.chromium.org/issues/327740939) > The > issue has 3 votes. > > *Other signals*: > > *WebView application risks* > > Does this intent deprecate or change behavior of existing APIs, such that > it has potentially high risk for Android WebView-based applications? > No > > > *Debuggability* > *No information provided* > > *Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, Android, and Android WebView)?* > Yes > > *Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* > Yes > - "letter-spacing-percentage-001.html" file in > https://wpt.fyi/results/css/css-text/letter-spacing > - "word-spacing-percentage-001.html" file in > https://wpt.fyi/results/css/css-text/word-spacing > - "letter-spacing-*.html" files in > https://wpt.fyi/results/css/css-text/parsing > - "word-spacing-*.html" files in > https://wpt.fyi/results/css/css-text/parsing > > *Flag name on about://flags* > enable-experimental-web-platform-features > > *Finch feature name* > CSSLetterAndWordSpacingPercentage > > *Rollout plan* > Will ship enabled for all users > > *Requires code in //chrome?* > False > > *Tracking bug* > https://issues.chromium.org/issues/327740939 > > *Estimated milestones* > Shipping on desktop 145 > Shipping on Android 145 > Shipping on WebView 145 > Shipping on iOS 145 > > *Link to entry on the Chrome Platform Status* > https://chromestatus.com/feature/5106867491700736?gate=6484265969778688 > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com/>. > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CA%2BLL-R6VKL-Muuq-FDTD9KL0prpPyRny00TCCmYmue6L17Hdyg%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CA%2BLL-R6VKL-Muuq-FDTD9KL0prpPyRny00TCCmYmue6L17Hdyg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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