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