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