[ticket/12662] Enable responsive linkslist for IE8

Also fixed arrow color

PHPBB3-12662

phpBB/styles/prosilver/theme/colours.css

@@ -369,11 +369,6 @@ a.arrow-right:hover {
 	color: #368AD2;
 }
 
-a.icon-dropdown:after {
-	background-image: url("./images/icon_dropdown.png");
-}
-
-
 /*
 --------------------------------------------------------------
 Colours and backgrounds for content.css

phpBB/styles/prosilver/theme/common.css

@@ -452,6 +452,14 @@ ul.linklist.bulletin li.no-bulletin:before {
 	width: auto;
 }
 
+.header-avatar span:after {
+	content: '\25BC';
+	display: inline-block;
+	float: right;
+	margin-left: 2px;
+	opacity: 0.7;
+}
+
 /* Dropdown menu
 ----------------------------------------*/
 .dropdown-container {
@@ -606,7 +614,7 @@ ul.linklist.bulletin li.no-bulletin:before {
 }
 
 .dropdown li.separator, ul.linklist .dropdown li.separator {
-	margin: 3px 0;
+	margin: 4px 0;
 	padding: 0;
 }
 

phpBB/styles/prosilver/theme/links.css

@@ -75,22 +75,6 @@ ul.linklist li.small-icon > a, ul.linklist li.breadcrumbs span:first-child > a {
 	width: 40px;
 }
 
-/* Dropdown links (inline) */
-a.icon-dropdown:after {
-	background-position: 0 0;
-	background-repeat: no-repeat;
-	content: '';
-	display: inline-block;
-	float: right;
-	height: 8px;
-	width: 11px;
-	margin: 9px 0 0 2px;
-}
-
-a.icon-dropdown:hover:after, .dropdown-visible a.icon-dropdown:after {
-	background-position: 0 -22px;
-}
-
 /* Links for forum/topic lists */
 a.forumtitle {
 	font-family: "Trebuchet MS", Helvetica, Arial, Sans-serif;

phpBB/styles/prosilver/theme/tweaks.css

@@ -69,5 +69,5 @@ dd.option {
 
 /* Fixes header-avatar aspect-ratio in IE8 */
 .header-avatar img {
-	height: 25px;
+	height: 20px;
 }