diff --git a/static/atom.css b/static/atom.css
index 74cc34d3b..8b067b579 100644
--- a/static/atom.css
+++ b/static/atom.css
@@ -34,5 +34,14 @@ body {
   position: absolute;
   width: 100%;
   height: 100%;
+  box-sizing: border-box;
+  -webkit-box-shadow: inset 0px 0px 2px 2px rgba(0, 0, 0, .1);
 }
 
+.row > * + * {
+  border-left: 5px solid #515151;
+}
+
+.column > * + * {
+  border-top: 5px solid #515151;
+}