.ui.panel .tab-nav{padding-top:5px;border:solid 1px rgba(0,0,0,.05);position:relative;background-color:var(--tb_pr_bg,#f7f7f7);border-top-left-radius:var(--tb_app_r,0);border-top-right-radius:var(--tb_app_r,0);box-shadow:inset 0 -3px 3px rgba(0,0,0,.1)}.ui.panel .tab-nav:before{content:"";width:100%;height:100%;position:absolute;top:0;left:0;border-radius:inherit;background-color:rgba(0,0,0,.1);background-image:var(--tb_app_gr,none)}.ui.panel .tab-content{border-top-left-radius:0;border-top-right-radius:0}