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