// 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
// 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