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