IE6/7下同级只有一个元素浮动，会换行问题

    .myDiv {
        background-color: red;
        width: 200px;
        height: 200px;
        padding: 10px;
    }
    .div1 {
        background-color: yellow;
        height: 20px;
    }

 <div class="myDiv">
        <div class="div1">
            <span>cccccccccccc</span><span style="float:left">JAVA</span>
        </div>
    </div>

IE7下测试有问题