/css" />
</head>
<body>

<div style="width: 300px; height: 100px; background: aqua">
  <div style="float:right; background:blue; width: 100px; height: 100px"></div>
  <div style="float:left; background:yellow; width: 200px; height: 50px">
    <div style="background:purple; width: 150px; height: 50px"></div>
  </div>
</div>



</body></html>