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