Css Float ile kaydırma

<html>

<head>
    <link href="stil.css" rel="stylesheet" type="text/css">
</head>

<body>

    <div class="ust">Üst</div>

    <div class="sol1">Sol %50</div>
    <div class="sag1">Sağ %50</div>

    <div class="sol">Sol</div>
    <div class="orta">Orta</div>
    <div class="sag">Sağ</div>
    <div class="alt">Alt</div>


</body>

</html>