图片垂直居中css写法兼容ie6

<div class="imgBox">
<img src="http://i.mmcdn./simba/img/T1mN1tXs0jXXb1upjX.jpg" />
<i></i>
</div>
.imgBox{ width:100%;height:400px; border:1px solid red;}
.imgBox img,.imgBox i{display:inline-block; vertical-align:middle;}
.imgBox i{height:100%}