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