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