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