.panel_404_outer { position: relative; }
.panel_404_outer:hover .c404_switcher.active { display: inline-block; }

.c404_switcher { font-size: 12px; display: none; position: absolute; left: 10px; top: 10px; padding: 8px; color: #fff; z-index:999999; }
.c404_switcher .content { position: relative; }
.c404_switcher .mask { background: black; opacity: .7; position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px; border-radius: 5px; }
.c404_switcher select { display: inline; width: 100px; padding: 1px; height: 1.5rem; margin-bottom: 0px; }

.panel_404_outer .panel_404_outer .c404_switcher { top:55px; }
.panel_404_outer .panel_404_outer .panel_404_outer .c404_switcher { top:110px; }
.panel_404_outer .panel_404_outer .panel_404_outer .panel_404_outer .c404_switcher { top:165px; }