Width: Auto Taking the First Element's Width

Have a div and 开发者_StackOverflowthere's a small link div inside that's 630 pixels wide and other little larger table inside that's 697 (According to the Firebug Layout inspector).

The containing div has width: auto and the layout inspector tells me that it's getting 630 for it's width. Why is this happening? Why isn't it picking the larger of the two values?

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Are you using position: relative; on all the corresponding divs?