HTML is the code behind what we see on web sites. Whether you realize it or not, every time you create online (make a Blackboard entry, publish to a website, post on Facebook, comment on a blog, etc.) you are using HTML. Web design has come a long way from the beginning when you had to hand code everything; usually we just have to fill out a form and our content magically appears. However, knowing some basic HTML can be really handy when you are trying to troubleshoot something that looks strange, for appearance, or for custom sites.