fix(playground): render italic text as slanted in Safari#1707
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Interactive example runners load Inter as a single variable `@font-face` from `Inter.var.woff2`, which exposes a `slnt` axis (`-10` to `0`) but no `ital` axis, declared as `font-style: oblique 0deg 20deg`. Safari trusts that declaration and neither drives the slant axis from `font-style: italic` nor synthesizes an oblique, so `<em>` and other italics render upright. Explicitly set `font-variation-settings: "slnt" -10` on italic elements in the `ix-tabbed` and `ix-choice` runners so Safari slants them.
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🚧 Needs companion PR in mdn/dex 🚧
Description
Fix
<em>and other italics rendering upright in interactive-example runners on Safari, by explicitly driving Inter'sslntvariable-font axis for italic elements in theix-tabbedandix-choicerunners.Motivation
The runners load Inter as a single variable
@font-facefromInter.var.woff2, which exposes aslntaxis (-10to0) but noitalaxis, declared asfont-style: oblique 0deg 20deg. Safari trusts that declaration and neither drives the slant axis fromfont-style: italicnor synthesizes an oblique, so italics render upright. Chrome and Firefox slant them regardless.Additional details
/shared-assets/fonts/Inter.var.woff2has axeswght 100–900andslnt -10 → 0only.components/font/inter.cssships separate realnormal/italicfaces; the runner can't reuse those (shared-assets only hosts the single variable file).Related issues and pull requests
Fixes #1269.