图片环绕的效果 css怎么实现

让标号1的一组图片环绕标号2的这张图片

<div>
        /*让他们环绕我*/
        <div>
            <img src="http://www.gbtags.com/gb/laitu/400x200&text=可爱的小周周/dd4814/ffffff" />
        </div>
        /*环绕他去*/
        <div>
            <img src="http://www.gbtags.com/gb/laitu/400x200&text=叫/dd4814/ffffff" />
        </div>
        <div>
            <img src="http://www.gbtags.com/gb/laitu/400x200&text=我/dd4814/ffffff" />
        </div>
        <div>
            <img src="http://www.gbtags.com/gb/laitu/400x200&text=小/dd4814/ffffff" />
        </div>
        <div>
            <img src="http://www.gbtags.com/gb/laitu/400x200&text=周/dd4814/ffffff" />
        </div>
        <div>
            <img src="http://www.gbtags.com/gb/laitu/400x200&text=周/dd4814/ffffff" />
        </div>
    </div>

大神帮帮忙，谢谢啦^_^！