Align several nested div's of a div. (center)

[choffi]

Several nested div's inside a container, the contents (nested divs) are not getting center aligned in it's parent.\[code\] <div id="parent"> <span id="menu_0" class="d"></span>\[/code\] \[code\]#parent{float: left;height:18px;width:980px;margin-top:55px;text-align:center;border: solid red 1px;}.d {background:url(../images/d.png) 0px 0px no-repeat;height:18px;width:28px;\[/code\]}