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