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