Element block pseudo-class :active generated with z-index auto padding 20px transform position static height auto box-sizing content-box line-height 1 border-radius display block width 160px text-shadow 1px 1px 1px rgba(0,0,0,0.2) float none cursor default overflow hidden transition font-weight normal background border 0px rgba(0,0,0,1) solid font-size 16px box-shadow 0px 0px 21px rgba(0,0,0,0.3) margin 0px