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