For Layouts like Layout -39, 59, 69 there is a toggle sidemenu like this. Sometimes it overlays statusbar. So you need some top padding for that.
CSS Code:
.layout.l39 .sidenav { top: 20px; padding-top: 0;}
.layout.l59 .sidenav { top: 20px; padding-top: 0;}
.layout.l69 .sidenav { top: 20px; padding-top: 0;}
For Layout-90:
.layout.l90 .sidenav { top: 15px; }
.layout.l90 #main .row { padding-top: 15px !important }
.layout.l90 .slider { top: 65px; }