HTML and CSS Reference
In-Depth Information
chapter
nine
Understanding Display, Position, and
Document Flow
IN THIS CHAPTER,
you complete the main layout of Cool Shoes & Socks, making use of the
display
and
pos-
ition
properties. Plus, you learn about the flow of a document. Later in the chapter, you use some of the more ad-
vanced CSS selectors that were covered in Chapter 3, to create a drop-down menu that will appear when users hover
over the “Shop” link.
Project files update (ch09-00): If you haven't followed the previous instructions and are comfortable working from
here onward or would like to reference the project files up to this point, you can download them from
Document Flow
A
document
is the fancy name for a web page. A web page has a flow, which determines the layout of elements. Prior
to the preceding chapter, in which you made elements float, the entirety of the Cool Shoes & Socks page had a “nor-
mal flow.”
All elements on a web page, by default, have a normal flow, referred to as being “in flow.” This means the position of
one element affects the next. Figure 9-1 shows how the Cool Shoes & Socks page looked at the end of Chapter 7,
where all elements were in flow—each element following the next.
