HTML, XHTML, and CSS

I have recently realized that I have been using the wrong tutorials to create my website. I was under the impression, having never done very much with HTML coding, that I was to be using HTML coding and tutorials. Much to my dismay I have just discovered that HTML 4 switched to XHTML in the year 1998. I was in 5th grade then. Oops. This has solved many problems in validating my code. I thought it was me that was messing things up, but it was really because I was working with the wrong coding.

This is a valuable lesson. If you are just beginning building a website and learning about this world of coding, I would highly recommend searching for the newest, most widely accepted form of coding. I have been told from various professors that XHTML will soon be a thing of the past to be replaced with HTML 5 instead. It's just so interesting to me how fast this world is changing. Technology moves so quickly and if you better keep up with it, if you want to survive in this fast paced world.