"Traditional site flows of boxes and arrows aren't detailed enough to paint a clear vision to others. You need visual site flows that show the basics of how a page will look. This gives your team a better idea of what you'll design, so that you can better meet their expectations."
CSS Lint points out problems with your CSS code. It does basic syntax checking as well as applying a set of rules to the code that look for problematic patterns or signs of inefficiency. The [rules] are all pluggable, so you can easily write your own or omit ones you don't want.