Move link styling into a base class

assets/sass/app.sass

@@ -2,6 +2,16 @@
 @import '~highlightjs/styles/github-gist'
 
 @tailwind preflight
+
+a
+  @apply text-blue no-underline
+
+  &:hover
+    @apply underline
+
+  &:focus
+    @apply text-white bg-blue outline-none px-px -mx-px no-underline
+
 @tailwind components
 
 @import 'components/blockquote'

assets/sass/components/markup.sass

@@ -16,16 +16,6 @@
     code
       @apply inline-block px-1 py-1 border border-grey-light font-bold
 
-  a,
-  .link
-    @apply text-blue no-underline
-
-    &:hover
-      @apply underline
-
-    &:focus
-      @apply text-white bg-blue outline-none px-px -mx-px no-underline
-
   pre code,
   .hljs
     @apply block leading-loose overflow-x-scroll p-6