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