diff --git a/phpBB/styles/prosilver/theme/colours.css b/phpBB/styles/prosilver/theme/colours.css
index 1918680c60..10ed275a9a 100644
--- a/phpBB/styles/prosilver/theme/colours.css
+++ b/phpBB/styles/prosilver/theme/colours.css
@@ -626,6 +626,28 @@ dd.profile-warnings {
 	color: #bc2a4d;
 }
 
+/* Show scrollbars for items with overflow on iOS devices
+---------------------------------------- */
+.postbody .content::-webkit-scrollbar,
+.topicreview::-webkit-scrollbar,
+.post_details::-webkit-scrollbar,
+.codebox code::-webkit-scrollbar,
+.attachbox dd::-webkit-scrollbar,
+.attach-image::-webkit-scrollbar,
+.dropdown-extended ul::-webkit-scrollbar {
+	background: rgba(0, 0, 0, 0.1);
+}
+
+.postbody .content::-webkit-scrollbar-thumb,
+.topicreview::-webkit-scrollbar-thumb,
+.post_details::-webkit-scrollbar-thumb,
+.codebox code::-webkit-scrollbar-thumb,
+.attachbox dd::-webkit-scrollbar-thumb,
+.attach-image::-webkit-scrollbar-thumb,
+.dropdown-extended ul::-webkit-scrollbar-thumb {
+	background: rgba(0, 0, 0, 0.3);
+}
+
 /*	colours and backgrounds for buttons.css
 	------------------------------------------------------------- */
 .button {
diff --git a/phpBB/styles/prosilver/theme/content.css b/phpBB/styles/prosilver/theme/content.css
index 066da392ca..e17eca5f35 100644
--- a/phpBB/styles/prosilver/theme/content.css
+++ b/phpBB/styles/prosilver/theme/content.css
@@ -863,7 +863,6 @@ table.fixed-width-table {
 .attachbox dd::-webkit-scrollbar,
 .attach-image::-webkit-scrollbar,
 .dropdown-extended ul::-webkit-scrollbar {
-	background: rgba(0, 0, 0, 0.1);
 	border-radius: 3px;
 	width: 8px;
 	height: 8px;
@@ -877,7 +876,6 @@ table.fixed-width-table {
 .attachbox dd::-webkit-scrollbar-thumb,
 .attach-image::-webkit-scrollbar-thumb,
 .dropdown-extended ul::-webkit-scrollbar-thumb {
-	background: rgba(0, 0, 0, 0.3);
 	border-radius: 3px;
 }