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