Editor: Fix line height on 'Drop files to upload'.

props Nao.
fixes #27541.


git-svn-id: https://develop.svn.wordpress.org/trunk@27773 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/css/media-views.css

@@ -1615,6 +1615,7 @@
 	-ms-transform: translateY( -50% );
 	transform: translateY( -50% );
 	font-size: 3em;
+	line-height: 1.3;
 	font-weight: bold;
 	color: #fff;
 	padding: 0;