[jQuery] JQuery UI Accordion option "collapsible:true" not collapsing

[jQuery] JQuery UI Accordion option "collapsible:true" not collapsing


I have a simple Accordion which I have given the settings:
        $("#accordion").accordion({
            event: "mouseover",
            header: "h3",
            active: false,
            collapsible: true,
            autoHeight: true
        });
And has layout:
    <div id="accordion">
         <h3 class="featured-pic-container">111</h3>
        <div>
            

AAA


        </div>
         <h3 class="featured-pic-container">222</h3>
        <div>
            

BBB


        </div>
         <h3 class="featured-pic-container">333</h3>
        <div>
            

CCC


        </div>
    </div>
I would like the whole accordion to collapse upon mouseout, but
collapsible:true doesn't seem to do this. Any suggestions?
Many thanks,
Nico