What does & mean in CSS?

Related questions

1. What does position fixed Do CSS?
2. Why clear both is used in CSS?
3. What is CSS overflow?
4. What is static position?
5. What is Clearfix in CSS examples?
6. What is absolute acceleration?
7. How do you center a menu in CSS?
8. What does the CSS property clear accomplish?
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Tags

1. #elements
2. #child
3. #select
4. #descendants
5. #looks
6. #symbol
7. #direct
8. #combinator
9. #greater
10. #means
11. #color