Many beginners face problems because of small CSS mistakes.
These mistakes make layouts break, styles not apply, and pages behave strangely.
Learning what to avoid is just as important as learning what to write.
Missing semicolons is one of the most common beginner errors.
One small typo can break multiple styles.
CSS is case sensitive for class and id names.
Always use the same spelling and casing.
Order of rules matters in CSS.
Later rules can override earlier ones.
Common CSS mistakes
- Forgetting semicolons
- Wrong class or id names
- Overusing !important
- Writing duplicate styles
- Not organizing CSS
Avoid using !important unless absolutely necessary.
It makes debugging harder later.
Practice task
Fix these mistakes:
- Remove !important
- Correct class spelling
- Add missing semicolons
- Reorder rules properly
Next lesson
In the next page, you will learn how to improve CSS performance.