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HTML object will not expand on initial page load

I have an html object that shows a twitter feed using the Twitter API. However when my website loads the html object will not expand. If I hide the object by clicking on a button and then show the object again by clicking on the original button it will expand correctly. Not sure why it will not expand on the initial attempt. Here is the link to my website. The object is at the bottom of the page. Any help would be appreciated.