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