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