+// the gap is used for checking the width calculations, but has no dom element.
+// This space is left blank (by floating main to the left and sidebar to the
+// right) and might save the layout if there are borders (which don't scale) or
+// rounding errors
+remove(columns['css'], '.centerer.with_sidebar > .sidebar.gap')
+remove(columns['responsive_css'], '.centerer.with_sidebar > .sidebar.gap')
+