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