How to set max-width of dijit.ToolTip?

Question

I tried the following, but it didn't seem to work.

var helpIcon = dojo.create("span", {"class":"help-icon", innerHTML:"[?]"}, td1);
var tooltip = new dijit.Tooltip({
        connectId: [helpIcon],
        label: "large paragraph of text here ... "
    });
tooltip._setStyleAttr("max-width: 100px");

Help!

Answer 1

Through experimentation, I found that this works:

.dijitTooltip {max-width: 50em;}

Answer 2

Just put a div inside the ToolTip and limit it's width:

<span id="a">Some Text</span>
<div dojoType="dijit.Tooltip" connectId="a" position="below">
    <div style="width: 400px;">Some Info Some Info Some Info Some Info 
    Some Info Some Info Some Info Some Info Some Info Some Info Some Info 
    Some Info Some Info Some Info Some Info Some Info Some Info Some Info 
    Some Info Some Info Some Info Some Info Some Info Some Info </div>
</div>