Index: src/wp-content/themes/twentyseventeen/style.css
===================================================================
--- src/wp-content/themes/twentyseventeen/style.css	(revision 43507)
+++ src/wp-content/themes/twentyseventeen/style.css	(working copy)
@@ -1792,6 +1792,8 @@
 	-webkit-background-size: cover;
 	background-size: cover;
 	position: relative;
+	transform: translate3d(0, 0, 0);
+	-webkit-transform: translate3d(0, 0, 0);
 }
 
 .panel-image:before {