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