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