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