CSS concepts

- [Voiceover] In this video, you'll learn the basic concepts…behind cascading stylesheets,…the interaction between external,…embedded, and inline styles.…Note that CSS can seem impenetrable…when you first get into it,…but if you understand the basic logic behind CSS,…it all starts to make sense.…So the first concept we'll look at…is what's called the cascade of styles.…In other words, how styles affect your material…with different priorities…depending on where those styles come from…or how they're applied.…

So on this screen, on the left I have two topics…labeled Topic 1 and Topic 2,…and over on the right I have a stylesheet…that I just called MyCSS.css.…If you look at the topics,…each topic has a top section, called a Head section,…a lower section, called the Body section.…The Head section is where all the program code goes.…There's also a lot of code in the Body section,…but the Body section is where the user material goes.…

And you'll see that each topic has a Head1,…one or more Heading2s,…and one or more P tags.…