diff --git a/popup/popup.css b/popup/popup.css
index 720e33aa..b2f61943 100644
--- a/popup/popup.css
+++ b/popup/popup.css
@@ -27,8 +27,8 @@ body {
 }
 
 body > div:not(#installed):not(#message-box):not(.colorpicker-popup) {
-  margin-left: var(--outer-padding);
-  margin-right: var(--outer-padding);
+  padding-left: var(--outer-padding);
+  padding-right: var(--outer-padding);
 }
 
 .firefox .chromium-only {