Right side of blog cut off

This worked better when I changed style.css from this:

#container {
	float: left;
	margin: 0 0 0 300px;
	min-height: 500px;
}

To this:

#container {
	float: left;
	margin: 0 0 0 300px;
	min-height: 500px;
	width: 700px;
}

The problem was that the right side of the blog was cutoff. This happened in Firefox, IE9 and Chrome.