Cannot get element width to 100%

HTML & CSS
1

This is probably something simple, but I cannot for the life of me get the div with id eStoreFront-Content in the following page to expand to 100% of the content area on the following page. Could someone take a look at the CSS and tell me what is preventing this?

http://shoutkey.com/pardonable

Thanks a lot.

2

This rule is restricting it:

.content div {
  height: auto;
  [COLOR="Red"]max-width: 460px;[/COLOR]
}
3

Thanks. I assumed it was part of the another stylesheet.