set correct value of max-height

Co-Authored-By: dojutsu-user <[email protected]>

Author: jessetan

sass/_theme_badge.sass

@@ -65,7 +65,7 @@
     left: auto
     border: none
     max-width: $nav-desktop-width
-    max-height: 100%
+    max-height: 90%
     .icon-book
       float: none
     .fa-book