diff --git a/src/popup.html b/src/popup.html
index ca1beee56..bd827a7e9 100644
--- a/src/popup.html
+++ b/src/popup.html
@@ -9,6 +9,7 @@
       }
       body {
         margin: 0;
+        width: 360px;
       }
     </style>
   </head>
diff --git a/src/scss/blacklistUpdate.scss b/src/scss/blacklistUpdate.scss
index 07a85943b..55693b4ef 100644
--- a/src/scss/blacklistUpdate.scss
+++ b/src/scss/blacklistUpdate.scss
@@ -35,7 +35,6 @@ details[open] > summary,
   font-family: arial, sans-serif;
   font-size: 1rem;
   padding: 1rem;
-  width: 360px;
 }
 
 #url {
diff --git a/src/scss/content.scss b/src/scss/content.scss
index e000b15ed..567677f50 100644
--- a/src/scss/content.scss
+++ b/src/scss/content.scss
@@ -5,6 +5,7 @@
 #ubBlacklistUpdateDialog {
   border: solid 1px lightgrey;
   padding: 0;
+  width: 360px;
 }
 
 #ubImageSearchControl {
@@ -87,15 +88,3 @@
   margin: 0 6px;
   width: 280px;
 }
-
-@media screen and (max-width: 400px) {
-  #ubBlockForm > button,
-  #ubUnblockForm > button {
-    display: block;
-    margin: 0 auto;
-  }
-  #ubBlockInput,
-  #ubUnblockSelect {
-    display: block;
-  }
-}