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