e>
    #test {
      display: flex;
    }

    #leftmost {
      order: -1;
    }

    #middle {
      order:0;
    }

    #rightmost {
      order:1;
    }
  </style>
 </head>
 <body>
  <p>Test passes if the paragraph below reads 'First,Second,Third'.</p>
  <div id="test">
    <p id="rightmost">Third</p>
    <p id="middle">Second,</p>
    <p id="leftmost">First,</p>
  </div>
 </body>
</html>