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