.rail-hold{display:none}@media (min-width:768px){body:has(.rail-hold){--app-rail-w:76px;--app-header-h:0px;padding-left:var(--app-rail-w)}.rail-hold{display:block;position:fixed;top:0;bottom:0;left:0;z-index:50;width:76px;background:#000}}