Change a page's appearance with CSS

Question 1
CSS lets you:
Attention, plusieurs réponses sont possibles.
- Create a content structure for your page
- Set a font for your page's text
- Control the size of your page's text
- Set the color of your page's text
- Write paragraph text in articles on your page
- Transform text on your page to uppercase
Question 2
Most of the time, you'll write CSS:
- In an external stylesheet
- Within your HTML document
Question 3
Color can be set in CSS with a(n):
Attention, plusieurs réponses sont possibles.
- Hex code
- RGB value
- RGBA value
- Color name
- HSL value
- Paintbrush