.di-stacks{position:fixed;left:0;width:100%;z-index:1000}.di-stacks--top{top:0;transition:top .5s ease}.di-stacks--bottom{bottom:0;transition:bottom .5s ease}.di-stacks #header,.di-stacks .menu-top,.di-stacks .mobile-tabs,.di-stacks header{position:relative}.di-stacks .fixed-top-spacer{display:none}