.ui.module.panel .tab-nav{padding-top:5px;border-bottom:0;position:relative;box-shadow:inset 0 -3px 3px rgba(0,0,0,.1)}.ui.module.panel .tab-nav:before{content:"";width:100%;height:100%;position:absolute;top:0;left:0;background:rgba(0,0,0,.1)}.ui.module.panel .tab-nav{border:solid 1px rgba(0,0,0,.05)}