diff --git a/app/javascript/flavours/glitch/styles/components/composer.scss b/app/javascript/flavours/glitch/styles/components/composer.scss
index 55b1fc599..3137b2dea 100644
--- a/app/javascript/flavours/glitch/styles/components/composer.scss
+++ b/app/javascript/flavours/glitch/styles/components/composer.scss
@@ -209,6 +209,11 @@
       vertical-align: sub;
     }
 
+    sup {
+      font-size: smaller;
+      vertical-align: super;
+    }
+
     ul, ol {
       margin-left: 1em;