Element block pseudo-class :active generated with transition background padding 20px position static display block border 0px rgba(0,0,0,1) solid float none cursor default font-size 16px height auto margin 0px text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-sizing content-box border-radius font-weight normal box-shadow 1px 1px 1px rgba(0,0,0,0.3) z-index auto transform line-height 1 overflow hidden width 160px