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Add migration guide for scss vars to css vars #757

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Apr 17, 2024
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Add migration guide for scss vars to css vars #757

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add table
langermank Apr 16, 2024
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markdown
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cleanup
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Update content/foundations/primitives/migrating.mdx
langermank Apr 17, 2024
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2 changes: 0 additions & 2 deletions content/foundations/primitives/color.mdx
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Expand Up @@ -4,8 +4,6 @@ description:
An overview of all available color CSS variables
---

<Note>The following color tokens are still in beta and require a fallback value be used.</Note>

## Foundational

### Foreground
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91 changes: 91 additions & 0 deletions content/foundations/primitives/migrating.mdx
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@@ -0,0 +1,91 @@
---
title: Migrating to CSS variables
description:
Support for migrating from SCSS varibles to CSS variables
---

## CSS variable replacements for SCSS variables

Most legacy SCSS variables from Primer CSS have new CSS variable replacements.

For values that have no replacement listed, use the raw value or find a replacement that is close in value.

| Legacy `scss` variable | New `css` variable |
| -- | -- |
| $h00-size-mobile | `--text-display-size` |
| $h0-size-mobile | `--text-title-size-large` |
| $h1-size-mobile | 26px `deprecated` |
| $h2-size-mobile | 22px `deprecated` |
| $h3-size-mobile | 18px `deprecated` |
| $h00-size | `--base-size-48` |
| $h0-size | `--text-display-size` |
| $h1-size | `--text-title-size-large` |
| $h2-size | `--base-size-24` |
| $h3-size | `--text-title-size-medium` |
| $h4-size | `--text-title-size-small` |
| $h5-size | `--text-body-size-medium` |
| $h6-size | `--text-body-size-small` |
| $font-size-small | `--text-body-size-small` |
| $font-weight-bold | `--base-text-weight-semibold` |
| $font-weight-semibold | `--base-text-weight-medium` |
| $font-weight-normal | `--base-text-weight-normal` |
| $font-weight-light | `--base-text-weight-light` |
| $lh-condensed-ultra | 1` |
| $lh-condensed | 1.25` |
| $lh-default | 1.5` |
| $body-font | `--fontStack-system` |
| $mono-font | `--fontStack-monospace` |
| $body-font-size | `--text-body-size-medium` |
| $body-line-height | `--text-body-lineHeight-medium` |
| $spacer | `--base-size-8` |
| $spacer-0 | 0 `deprecated` |
| $spacer-1 | `--base-size-4` |
| $spacer-2 | `--base-size-8` |
| $spacer-3 | `--base-size-16` |
| $spacer-4 | `--base-size-24` |
| $spacer-5 | `--base-size-32` |
| $spacer-6 | `--base-size-40` |
| $spacer-7 | `--base-size-48` |
| $spacer-8 | `--base-size-64` |
| $spacer-9 | `--base-size-80` |
| $spacer-10 | `--base-size-96` |
| $spacer-11 | `--base-size-112` |
| $spacer-12 | `--base-size-128` |
| $em-spacer-1 | 0.0625em `deprecated` |
| $em-spacer-2 | 0.125em `deprecated`|
| $em-spacer-3 | 0.25em `deprecated` |
| $em-spacer-4 | 0.375em `deprecated` |
| $em-spacer-5 | 0.5em `deprecated` |
| $em-spacer-6 | 0.75em `deprecated` |
| $size | `--base-size-16` |
| $size-0 | 0 `deprecated` |
| $size-1 | `--base-size-16` |
| $size-2 | `--base-size-20` |
| $size-3 | `--base-size-24` |
| $size-4 | `--base-size-28` |
| $size-5 | `--base-size-32` |
| $size-6 | `--base-size-40` |
| $size-7 | `--base-size-48` |
| $size-8 | `--base-size-64` |
| $container-width | 980px `deprecated` |
| $grid-gutter | 10px `deprecated` |
| $width-xs | 0 `deprecated` |
| $width-sm | `--breakpoint-small` |
| $width-md | `--breakpoint-medium` |
| $width-lg | `--breakpoint-large` |
| $width-xl | `--breakpoint-xlarge` |
| $container-sm | `--breakpoint-small` |
| $container-md | `--breakpoint-medium` |
| $container-lg | `--breakpoint-large` |
| $container-xl | `--breakpoint-xlarge` |
| $viewport-narrow | `--viewportRange-narrow` |
| $viewport-regular | `--viewportRange-regular` |
| $viewport-wide | `--viewportRange-wide` |
| $border-width | `--borderWidth-thin` |
| $border-style | solid `deprecated` |
| $border | `solid var(--borderWidth-thin) var(--borderColor-default)` |
| $border-rem | `solid var(--borderWidth-thin) var(--borderColor-default)` |
| $border-radius-1 | `--borderRadius-small` |
| $border-radius-2 | `--borderRadius-medium` |
| $border-radius-3 | 8px --borderRadius-medium` |
| $border-radius | `--borderRadius-small` |
2 changes: 2 additions & 0 deletions src/@primer/gatsby-theme-doctocat/nav.yml
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Expand Up @@ -126,6 +126,8 @@
url: /foundations/primitives/size
- title: Typography
url: /foundations/primitives/typography
- title: Migrating
url: /foundations/primitives/migrating
- title: Responsive
url: /foundations/responsive
- title: CSS utilities
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