Remove unformatted text except all except elements?

I have a div that contains an unfor开发者_开发问答matted text and two divs. If you ask why the text isn't formatted it's because it's returned by a plugin through the API so I can't really control it. The markup looks like so:

<div id="parentdiv">
   <div class="childdiv"></div>
   <div class="childdiv"></div>
   unformattedtext
</div>

How do I get rid of "unformattedtext"? If possible I would like to do it with CSS but if not it's okay with jQuery.

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This removes text-nodes which are direct childs of #parentdiv:

$("#parentdiv").contents().filter(function(){ return this.nodeType == 3; }).remove();

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$('#parentdiv').contents(':not(*)').remove();

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You could put unformattedtext into a div/a/p/span/font with display:inline, so as not to break formattion.

<div id="parentdiv">
    <div class="childdiv"></div>
    <div class="childdiv"></div>
    <div style="display:inline">unformattedtext</div>
</div>

<script type="text/javascript">
$("#parentdiv :not(.childdiv)").hide(); //Hide whatever is not .childdiv
</script>

JSFiddle: http://jsfiddle.net/kongr45gpen/EBL4G/