View source in your browser to see the code.
The layout and styles are coded with CSS. Content is HTML.
That's pretty much how all modern web sites are created.
do you have any good tutorials on how to do this?
First, learn all you can about HTML & CSS code. DW expects you to know the fundamentals.
Next, find a pre-built CSS Layout that has all the columns/containers needed for your project. You'll find several resources in the link below.
Finally, work through some Adobe Tutorials to get familiar with Dreamweaver & how it works.
WEB DESIGNER RESOURCES
Alt-Web Design & Publishing
Web | Graphics | Print | Media Specialists