Element block pseudo-class :active generated with float none box-sizing content-box opacity 0.77 z-index auto width 160px display block transform overflow hidden height auto line-height 1 background cursor default position fixed margin auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-shadow 1px 1px 1px rgba(0,0,0,0.3) border-radius transition font-weight normal font-size 18px padding 10px border 2px #a4a4a4 solid