diff --git a/editor/css/editor.css b/editor/css/editor.css
index 393db7dd4071cb737f12941ad825627614d9e2cc..91170d51b3f8d1660650baf6a097a82aeb1ab79f 100644
--- a/editor/css/editor.css
+++ b/editor/css/editor.css
@@ -54,7 +54,8 @@ div#ks-editor textarea, div#ks-editor input[type="text"] {
 }
 
 div#ks-editor img.preview-image {
-    max-width: 5rem;
+    max-width: 3rem;
+    max-height: 3rem;
     height: auto;
 }