diff --git a/public/style.css b/public/style.css
index 30a04a51f..752b32dbb 100644
--- a/public/style.css
+++ b/public/style.css
@@ -4758,6 +4758,8 @@ body:not(.sd) .mes_img_swipes {
 
 #customCSS {
     flex: 1 1 auto;
+    min-height: 20vh;
+    min-height: 20dvh;
 }
 
 #ui_language_select {