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