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