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