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Introduction

Learn how to define selectors based on an element’s type, ID, class, or any of its attributes and values.

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[MUSIC] 0:00

CSS, or Cascading Style Sheets, are an important part of web design and 0:09

frontend development. 0:13

CSS provides the presentation layer that can turn unexciting HTML into a beautiful, 0:14

vibrant webpage. 0:20

There are lots of concepts and techniques to learn to master CSS. 0:21

But to get started as a full stack JavaScript developer, 0:25

you'll need a basic understanding of CSS and a deeper knowledge of CSS selectors. 0:28

I'm Guil, a JavaScript and frontend web development teacher here at Treehouse. 0:33

In this course I'll teach you what you need to know and understand about CSS 0:37

selectors to begin writing JavaScript programs that make webpages interactive. 0:40

Having a deep knowledge of CSS selectors is incredibly for JavaScript 0:45

developers writing code that works with the DOM, or Document Object Model. 0:50

The DOM is what allows JavaScript to interact with and 0:54

make changes to elements on a webpage. 0:57

You'll learn a whole lot more about working with JavaScript and 0:59

the DOM in another course. 1:02

Coming up in this course, 1:04

we'll start by reviewing the common ways to define a CSS selector. 1:05

For instance, selectors can be defined based on an element's type, ID, 1:09

class or any of its attributes and values. 1:16

You'll then learn how to use psuedo-classes to select elements based on 1:20

user interaction and combinators that target elements based on their position 1:25

and relation to other elements in the DOM. 1:29

And we'll go over CSS selector strategies and best practices for 1:31

working with JavaScript. 1:35

This course is mostly made up of text-based steps to let you 1:36

progress at your own pace. 1:39

You're also going to get plenty of practice opportunities along the way with 1:41

code challenges. 1:44

If you have questions about anything covered in this course, 1:45

feel free to reach out to the Treehouse staff or other students in the community. 1:48

Let's get to it. 1:51

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