The last selectors we'll look at are
querySelectorAll. These are the most flexible of the selectors we've looked at, as they will accept ID's, classes, tag names and more.
CSS selectors are a powerful way to select DOM elements. If you'd like to learn more about CSS selectors, including pseudo-class selectors, check out CSS Selectors on Treehouse.
In addition, here's what MDN has to say about CSS selectors.
querySelector and querySelectorAll
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