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