[jQuery] height of a hidden element

[Sebastián V. Würtz]

Is posible that if i have a hidden div i cant get his height?

I want to increase or decrease some font sizes according to the max 
height of those 3 divs to using with cycle plugin but because im only 
showing one at a time and the rest are hide i getting 0 as height

    $('#rotate div .item')
        .each(function() {
            $(".msg").append($(this).height() + '-');
        }
    );


<div ir="rotate">
    <div class="item">
        <img src="test1.jpg">
        <p>.......</p>
    </div>
    
    <div class="item">
        <img src="test2.jpg">
        <div class="other">
            <p>.......</p>
            <p>.......</p>
        </div>
    </div>
    
    <div class="item">
        <p>.......</p>
        <p>.......</p>
        <p>.......</p>
    </div>
</div>