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