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