flag{
            width: 600px;
            background-color: red;
            position: absolute;
            left: 0;
            top: 0;
            z-index: -1;
        }
    </style>
</head>
<body>
    <p>'float' have no effect on a flex item.</p>
    <p>The test passes if there is a green square, a blue square and no red square.</p>
<div id="myDiv">
    <p id="first-p">&nbsp;</p><p id="second-p">&nbsp;</p><p id="fail-flag">&nbsp;</p>
</div>
<script>
</script>
</body>
</html>