left
rightrightrightrightrightrightrightrightrightright
<div class="one">
<br>
<div class="left">
<p>left</p>
</div>
<div class="right">
<p>
rightrightrightrightrightrightrightrightrightright
</p>
</div>
</div>
left
right
centercentercentercentercentercentercenter
<div class="left">
<p>left</p>
</div>
<div class="right">
<p>
right
</p>
</div>
<div class="mid">
<p>centercentercentercentercentercentercenter</p>
</div>
<div class="outer">
<div class="inner"></div>
</div>