Element block pseudo-class :active generated with overflow hidden display block float none box-shadow 1px 1px 1px rgba(0,0,0,0.3) border-radius box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) line-height 1 font-weight normal background transition width 160px border 0px rgba(0,0,0,1) solid cursor default z-index auto height auto padding -12px transform font-size 16px margin 0px position static