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