Merge branch 'tailwind-base-no-preflight' into 'master'

Add Tailwind base without preflight

See merge request !149004



Merged-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Approved-by: Chad Lavimoniere <clavimoniere@gitlab.com>
Co-authored-by: Paul Gascou-Vaillancourt <paul.gascvail@gmail.com>

app/assets/stylesheets/tailwind.css

 /* stylelint-disable scss/at-rule-no-unknown */
 
+@tailwind base;
 @tailwind utilities;

app/assets/stylesheets/tailwind_all_the_way.css

 /* stylelint-disable scss/at-rule-no-unknown */
 
+@tailwind base;
+
 .gl-border {
     @apply gl-border-gray-100;
     @apply gl-border-solid;

config/tailwind.all_the_way.config.js

@@ -62,6 +62,12 @@ module.exports = {
     Maybe compatible?
      */
     outlineWidth: false,
+    /*
+    Disable preflight styles so that `@tailwind base` compiles to CSS vars declarations without
+    any of the resets which we don't need.
+    More on this at https://tailwindcss.com/docs/preflight.
+     */
+    preflight: false,
   },
   theme: {
     // These extends probably should be moved to GitLab UI: