diff --git a/phpBB/adm/style/admin.css b/phpBB/adm/style/admin.css
index b53587a5cf..8989710535 100644
--- a/phpBB/adm/style/admin.css
+++ b/phpBB/adm/style/admin.css
@@ -539,7 +539,6 @@ li {
 	font-size: 1em;
 	border-right: 1px solid #cccfd3;
 	position: relative;
-	z-index: 1;
 	float: left;
 	width: 200px;
 	padding: 0;
@@ -2142,7 +2141,6 @@ li .pagnation li span,
 	text-align: center;
 	border: 1px solid #aaaaaa;
 	color: #000000;
-	opacity: 0.95;
 	width: 200px;
 }
 
diff --git a/phpBB/adm/style/permission_mask.html b/phpBB/adm/style/permission_mask.html
index 017d29d832..8b3121bfa0 100644
--- a/phpBB/adm/style/permission_mask.html
+++ b/phpBB/adm/style/permission_mask.html
@@ -41,7 +41,7 @@
 			<dt style="width: 20%"><label for="role{p_mask.S_ROW_COUNT}{p_mask.f_mask.S_ROW_COUNT}">{L_ROLE}{L_COLON}</label></dt>
 			{% if p_mask.f_mask.role_options %}
 				<dd style="margin-{S_CONTENT_FLOW_BEGIN}{L_COLON} 20%">
-					<div class="dropdown-container dropdown-button-control roles-options" data-alt-text="{LA_ROLE_DESCRIPTION}">
+					<div class="dropdown-container dropdown-right dropdown-button-control roles-options" data-alt-text="{LA_ROLE_DESCRIPTION}">
 						<select id="role{p_mask.S_ROW_COUNT}{p_mask.f_mask.S_ROW_COUNT}" name="role[{p_mask.f_mask.UG_ID}][{p_mask.f_mask.FORUM_ID}]">{p_mask.f_mask.S_ROLE_OPTIONS}</select>
 						<span title="Roles" class="button icon-button tools-icon dropdown-trigger dropdown-select">{L_NO_ROLE_ASSIGNED}</span>
 						<div class="dropdown hidden">