px solid orange;
            }
            #spacer
            {
                margin: 25px;
            }
        </style>
    </head>
    <body>
        <p>Test passes if the vertical space between the two blue boxes is the same as the space between the two orange boxes.</p>
        <div id="parent">
            <div class="inline test">XXXXX</div><div class="inline reference">XXXXX</div>
            <div id="spacer"></div>
            <div class="inline test">XXXXX</div><div class="inline reference">XX