diff --git a/toolkit/themes/pinstripe/global/media/videocontrols.css b/toolkit/themes/pinstripe/global/media/videocontrols.css
index ba6b772e2ff..d1c31e9a6f2 100644
--- a/toolkit/themes/pinstripe/global/media/videocontrols.css
+++ b/toolkit/themes/pinstripe/global/media/videocontrols.css
@@ -74,7 +74,8 @@
     padding-left: 8px; /* don't bump into the scrubber bar */
     padding-top: 2px; /* center vertically with scrubber bar */
     color: rgba(255,255,255,0.75);
-    font: 11px sans-serif;
+    font-size: 11px;
+    font-family: Helvetica, sans-serif;
 }
 
 .backgroundBar {
@@ -143,7 +144,8 @@
 
 .timeLabel {
     color: rgba(255,255,255,0.75);
-    font: 10px sans-serif;
+    font-size: 10px;
+    font-family: Helvetica, sans-serif;
     text-shadow: rgba(0,0,0, 0.3) 0 1px;
     padding-top: 4px;
 }
diff --git a/toolkit/themes/winstripe/global/media/videocontrols.css b/toolkit/themes/winstripe/global/media/videocontrols.css
index 192be5af02d..2de2f260aff 100644
--- a/toolkit/themes/winstripe/global/media/videocontrols.css
+++ b/toolkit/themes/winstripe/global/media/videocontrols.css
@@ -77,7 +77,8 @@
     padding-left: 8px; /* don't bump into the scrubber bar */
     padding-top: 0px; /* center vertically with scrubber bar */
     color: rgba(255,255,255,0.75);
-    font: 11px sans-serif;
+    font-size: 11px;
+    font-family: Arial, sans-serif;
 }
 
 .backgroundBar {
@@ -152,7 +153,8 @@
 
 .timeLabel {
     color: rgba(255,255,255,0.75);
-    font: 10px sans-serif;
+    font-size: 10px;
+    font-family: Arial, sans-serif;
     text-shadow: rgba(0,0,0, 0.3) 0 1px;
     padding-top: 2px;
 }