Layout issue - structural container not expaning full width of layout
I have a site I'm re-skinning that I have run across and issue with. It seems as if one of my structural elements is not expanding to the full width of the layout.
Consequently, content is being cut-off. For some browsers, I can hide the issue by applying the "overflow-x" property to my html element. However, this doesn't work on mobile versions of Safari and, as a solution, it isn't something I want to use.
My access to the html is limited and there are a number of issues I'm aware of but I'm unsure those issues are contributing to this specific problem.
Just curious if someone might be able to provide insight?.