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