HTML文字两边对齐

<div >
    <div style="width:4em;text-align:justify;text-align-last:justify;background:red;text-justify:inter-ideograph">三个字</div> 
    <div style="width:4em;text-align:justify;text-align-last:justify;background:red;text-justify:inter-cluster">两个</div>
    <p>下面的在IE中不能正常两边对齐</p>
    <div style="width:4em; text-align-last:justify;background:red ">两个</div>
</div>

 效果

三个字

两个

下面的在IE中不能正常两边对齐

两个