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