If all of this is doesn't make sense to me, should I give up on webdesign?

I think that you need to know why you are interested in web design. This may seem like a straight forward question, but not always. If you are trying to build a skill set because you have a passion and desire to design and build websites, then you need to figure out why it isn't making sense. If, on the other hand, your reasons are purely financial or the idea of being a "developer" or "designer" sounds alluring and prestigious, you need to consider that the dedication, hours of practice, and constant refinement needed to reach that level and decide if the sacrifices are worth the reward. If this is your passion, then consider why it is not making sense. Is it the delivery of the content, the format, the amount of time you spend outside of the lessons practicing on your own, the inclusion of outside books and materials to supplement Treehouse, or something else. I think one of the most important skills anyone can have is to know one's self, abilities, and aptitudes.

Learning is hardly ever instant, so I wouldn't feel bad for not getting it at first. Reviewing something over and over again, meditating on the information, and experimenting helps. I would finish the courses, go back and review what didn't make sense, and apply the information. Don't think you have to understand everything. Sal Kahn explains learning and how the brain works, and there are a lot of helpful videos on the subject of learning. I think that will encourage you to keep at design. It will definitely change your perspective on tackling a subject that might not come easy to you at first.

Don' t give up Mark. Keep going. Im new to coding and am a month into studying. From my experience I found a good program I liked after testing many (treehouse) and along with taking good notes, I google things, purchased a few books that are helpful and practice. I also spend hours doing it. The things I don't feel confident in I redo or find more information in and take an extra course in. Its def slow going but a month later I see a definite improvement like being able to see where i messed up with my code.

Keep going! its definitely not easy but the feeling of accomplishment you get is wonderful.

It's not easy for humans to describe how computers work to other humans using human language to describe computer language.

try the tutorial series on w3schools maybe. they might work for you. If so then once the whole picture starts to come into focus you might come back to whatever you were working on here. (w3schools isn't really gonna get you to the point of actually being ready to publish anything)

Good reasons to quit web-design would be a lack of time, lack of interest in making websites or a lack of interest in website design. There are not some people who will get it and some people who are not smart in that way. However, there are people who will understand this stuff from any given teacher or approach to explaining it, and others who wont.

And I'm not saying never give up, I'm saying that as a mammal, and a human being no less, you are intelligent enough too understand this stuff. Therefore it's a communication breakdown.

I have to agree with what Lorraine said. Google the areas you are having problems understanding. Create some sample web pages, and fiddle with the values in the code to see how they change. Take notes to reinforce. But only give up if you don't have the passion and desire to design and create websites :).

I wish you well with your studies.

http://www.youtube.com/watch?v=WTFnmsCnr6g watch this video and think again.

Confusion is temporary and will pass if you will keep pushing your self to the source of knowledge. It may take one day, one week, a month or a year(s). But it will eventually pass. If you quit now you will always be confused.

Thanks for all your responses. I'm not thinking about it money wise. I just liked being able to put code together and having the ability to create things that could be potentially useful. I'm struggling more with the units of measure portion of CSS.