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