diff --git a/scss/_type.scss b/scss/_type.scss
index 1075757795..ba476d8892 100644
--- a/scss/_type.scss
+++ b/scss/_type.scss
@@ -66,7 +66,7 @@ small,
 
 mark,
 .mark {
-  padding: .2em;
+  padding: $mark-padding;
   background-color: $state-warning-bg;
 }
 
diff --git a/scss/_variables.scss b/scss/_variables.scss
index e28b46711d..4a11547e1d 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -205,6 +205,8 @@ $blockquote-border-width: .25rem !default;
 $hr-border-color: rgba(0,0,0,.1) !default;
 $hr-border-width: $border-width !default;
 
+$mark-padding: .2em !default;
+
 $dt-font-weight: bold !default;
 
 $kbd-box-shadow:         inset 0 -.1rem 0 rgba(0,0,0,.25) !default;