diff --git a/_includes/link-previews.html b/_includes/link-previews.html
index ee22632..7e80667 100644
--- a/_includes/link-previews.html
+++ b/_includes/link-previews.html
@@ -2,6 +2,7 @@
 <style>
   content a.internal-link {
     border-color: #8b88e6;
+    background-color: #efefff;
   }
 
   #tooltip-wrapper {
diff --git a/_sass/_style.scss b/_sass/_style.scss
index 5c854aa..9dccba7 100644
--- a/_sass/_style.scss
+++ b/_sass/_style.scss
@@ -76,6 +76,8 @@ h6 {
 }
 
 a {
+  transition: background 300ms;
+  padding: 0 0.1em;
   text-decoration: none;
   border-bottom: 1px solid $color-border;
   color: $color-primary;