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