Ticket #3959: meta-3959.diff

sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-themes/css/components/_main.scss

@@ -1001 +1001 @@
 
 #customize-container iframe,
 .theme-install-overlay iframe {
-        height: 100%;
+        height: calc( 100% - 32px );
         width: 100%;
         z-index: 20;
         transition: opacity 0.3s;