# CSS Basics ## Introduction This again should represent a review from what you've already covered in the [Foundations Lesson on HTML/CSS](https://www.learnhowtocodebook.com/foundations/frontend/html-and-css), but if you're unable to answer the questions posed below in the "Learning Outcomes" section, you could probably benefit from the review of the basic stuff. ## Learning outcomes * What are selectors? * In general, how specific should you be when targeting elements using selectors? * What's the difference between using `%`, `em` and `rem` to specify sizes? * How do you select an element inside another element? * How can you shorten up a long batch of CSS that's doing the same thing to many different elements by putting them all in one line? * How do you target the immediate child of an element? * How do you target a class inside a class? * How do you target a class inside an ID? * How would you target "all the links inside `li` elements that have the class `bunny` which are inside the unordered list with the id `things-that-hop`"? * What are the three ways to include CSS in your project? * How do you import an external stylesheet? * What is the browser's default stylesheet? * What is a "CSS Reset" file and why is it helpful? * Which stylesheet has preference if you import multiple ones and there are overlapping styles? * What is the order of priority of selectors (e.g. if you specify that the `` has color `black` but `

` tags have the color `blue` but class `main-title` has the color `red`, which will be used by `

Howdy!

`?) ## Assignment 1. Read [Shay Howe on the Basics of HTML/CSS](https://learn.shayhowe.com/html-css/getting-to-know-css/). 2. Read [CSS Tricks on Attribute Selectors](https://css-tricks.com/attribute-selectors/). ## Additional resources This section contains helpful links to other content. It isn't required, so consider it supplemental for if you need to dive deeper into something. * [Learn CSS Selectors Interactively Using CSS Diner](http://flukeout.github.io/) * [Smashing Magazine on Taming Advanced CSS Selectors](http://coding.smashingmagazine.com/2009/08/17/taming-advanced-css-selectors/)