diff --git a/source/js/main.js b/source/js/main.js
index 6b36fd9..9ad7518 100644
--- a/source/js/main.js
+++ b/source/js/main.js
@@ -53,14 +53,14 @@
 
         $('figure.highlight').each(function () {
             if ($(this).find('figcaption').length) {
-                $(this).find('figcaption').addClass('level');
+                $(this).find('figcaption').addClass('level is-mobile');
                 $(this).find('figcaption').append('<div class="level-left">');
                 $(this).find('figcaption').append('<div class="level-right">');
                 $(this).find('figcaption div.level-left').append($(this).find('figcaption').find('span'));
                 $(this).find('figcaption div.level-right').append($(this).find('figcaption').find('a'));
             } else {
                 if (clipboard || fold) {
-                    $(this).prepend('<figcaption class="level"><div class="level-left"></div><div class="level-right"></div></figcaption>');
+                    $(this).prepend('<figcaption class="level is-mobile"><div class="level-left"></div><div class="level-right"></div></figcaption>');
                 }
             }
         });