diff --git a/src/scss/_typography.scss b/src/scss/_typography.scss
index 427cdb7..bca7dfa 100644
--- a/src/scss/_typography.scss
+++ b/src/scss/_typography.scss
@@ -179,6 +179,16 @@ h1, h2, h3, h4, h5, h6, h7 {
   }
 }
 
+sup, sub {
+  & > a {
+    color: $color-link;
+    background-color:transparent;
+    &:hover, &:focus, &:active {
+      color: darken($color-link, 10%);
+    }
+  }
+}
+
 h1 {
   //@include title(3.33em, 1.2em, 0.0em, 0.2em, 200);
   @include newTitle($titlefont, 3.815, $fontweight_big);