YUI 3 Getting height of an element and apply it to another element

[subho007]

I'm new to YUI and I'm finding it....strange compared to using jQuery for years. I can't seem to find out for the life of me on how to write something like this:I'm trying to get the height of the div id #header and apply a ?margin-top ?with the value being the #header height to a div id called #noHero.So the html markup would end up being something like:\[code\]<header id="header" /><div id="noHero" style="height: HEADER HEIGHT" />\[/code\]Hopefully someone can help me here.Many thanks.