二个div显示在同一行

1.

<div>

? <div style="display: inline"> a</div>

? <div style="display: inline">b</div>

</div>

?

2.如下：

<div class="index_topic">

test1

</div>

<div class="index_topic">

test2

</div>

?

.index_topic {

margin:8px;

margin-left:0px;

margin-right:50px;

width:280px;

height:300px;

float:left;

overflow:hidden;

background:url(../images/line_gray.gif) repeat-x

}