Layout blogger.

Trying to do outstanding layout for my blog but technically I don't really know how to do and it's quite  complicated to understand the steps to do the html for the blog layout. Can you suggest me the url that I can go to learn about html the themes layout for blogger. When I visit my friends blog, theres few of them do their blog layout different from normal layout that I have seen before. It's make me want to learn how to do it but I do not know where to start? Hoping theres people kindly want to share the knowledge of doing the layout with me. I know it takes time to learn and understand how to do, what to insert, where to put the html code. I will try if you give me the chance to learn it. Thank you.