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