Indexhibit Support

Hi,
I recently looked at my website on a PC at work and on the article pages instead of having two columns it only had one running down the left hand side. Also that text was slightly larger which changed the position of other items on the page. Is there a column width and font that will not change on different computers?
Thanks
Alice
transcript.org.uk/index.php/circa/

In you specific page this seemed to work:

1. #exhibit .container {
2.     width: 1024px;
3. }