there is nothing wrong with learning from DW. I use DW and just type code but I use the preview to see mistakes and everything. I learned from that. I am a intermediate at html and css.
I will approach this with other recommendations. I suggest that you take one or two college courses in HTML at a local community college. That is what I did.
Another recommendation is to check out books that you can find at the library or a bookstore on HTML.
Sitepoint.com has some great books for hearning HTML and CSS. They are not cheap, but they are what I use when I create websites for myself.
Another source for knowledge is Lynda.com. I have never used this website. This is a membership website with booka and videos.
chandy i got mine off of google but you might want to go to www.w3schools.com to learn becuase i just made it without learning and thats why i had to post help on here for mine