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