style: minor lint fixes, require :: for pseudo elements

sass-lint.yml

@@ -21,10 +21,12 @@ rules:
     no-vendor-prefixes: 0
 
     no-css-comments: 0
+    no-color-literals: 0
     no-misspelled-properties: 0
     no-trailing-whitespace: 2
     no-qualifying-elements: 0
 
+    pseudo-element: 2
 
 
 

src/_variables.scss

@@ -5,7 +5,7 @@ $font-family: inherit !default;
 $font-size-sm: 12px !default; // .85em?
 $font-size-lg: 16px !default;
 
-$line-height: (20/14) !default;
+$line-height: (20 / 14) !default;
 $line-height-em: $line-height * 1em;
 $form-line-height: $line-height !default;
 $form-line-height-em: $form-line-height * 1em;