diff --git a/phpBB/styles/prosilver/theme/buttons.css b/phpBB/styles/prosilver/theme/buttons.css
index b70bba61f2..726639ff92 100644
--- a/phpBB/styles/prosilver/theme/buttons.css
+++ b/phpBB/styles/prosilver/theme/buttons.css
@@ -25,6 +25,7 @@
 .button:focus,
 .button:hover {
  	text-decoration: none;
+ 	outline: none;
 }
 
 .caret {
diff --git a/phpBB/styles/prosilver/theme/colours.css b/phpBB/styles/prosilver/theme/colours.css
index aead81ed84..77c17b568e 100644
--- a/phpBB/styles/prosilver/theme/colours.css
+++ b/phpBB/styles/prosilver/theme/colours.css
@@ -606,7 +606,8 @@ Colours and backgrounds for buttons.css
 	color: #D31141;
 }
 
-.button:hover, .dropdown-visible .dropdown-select, .nojs .dropdown-container:hover .dropdown-select {
+.button:hover,
+.button:focus {
 	border-color: #0A8ED0;
 	background-color: #FFFFFF; /* Old browsers */ /* FF3.6+ */
 	background-image: -webkit-linear-gradient(top, #E9E9E9 0%, #FFFFFF 100%);