Element block pseudo-class :active generated with box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) float none border 2px rgba(0,0,0,1) solid background font-weight normal font-size 16px position static overflow hidden line-height 1 width 160px height auto padding 20px display block transform z-index auto margin 0px transition cursor default box-shadow 1px 1px 1px rgba(0,0,0,0.3) border-radius