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