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