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