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