Index: branches/5.3.x/core/admin_templates/incs/style_template.css
===================================================================
diff -u -N -r15690 -r15914
--- branches/5.3.x/core/admin_templates/incs/style_template.css	(.../style_template.css)	(revision 15690)
+++ branches/5.3.x/core/admin_templates/incs/style_template.css	(.../style_template.css)	(revision 15914)
@@ -492,6 +492,9 @@
 	border: 1px solid black;
 }
 
+.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}
+.CodeMirror-activeline-background {background: #e8f2ff !important;}
+
 .label-cell-filler {
 	background: #DEE7F6 none;
 }