Learn Intermediate CSS by Building a Picasso Painting - Step 7

I don’t have any issue with my code, but I have a CSS question. Between the last project where we built the budget form and this current project, I’m noticing some selectors need a # sign in front. In what cases do we use/not use these?


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**Challenge:**  Learn Intermediate CSS by Building a Picasso Painting - Step 7

**Link to the challenge:**
https://www.freecodecamp.org/learn/2022/responsive-web-design/learn-intermediate-css-by-building-a-picasso-painting/step-7

The hashtag is used to select an element by its unique id value.

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As opposed to the class, which gets a period. Just clicked. Thanks :+1:

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