Responsive tweaks

src/styles/_app_base.sass

@@ -12,6 +12,10 @@ body
 	position: relative
 	height: 100%
 
+	+media-xs
+		display: block
+		height: auto
+
 #col_sidebar
 	width: $sidebar-width
 	min-width: $sidebar-width
@@ -24,8 +28,16 @@ body
 	min-height: 100%
 	position: relative
 
+	+media-xs
+		height: auto
+		min-height: auto
+		margin: 0 auto
+		padding-left: $sidebar-width !important
+
 #col_main
 	width: 50% // gets overriden by JS, dragging the col-splitter
+	+media-xs
+		width: 100%
 
 #col_right
 	flex: 1 1 auto