1. Centering Trick in Flexbox: Use flexbox to easily center div elements.2. Quick Grid Auto-Placement: Use auto-fill and minmax to design navbars or dashboards.3. Adjacent Sibling Selector: Select adjacent elements to apply specific styles.4. Make Use of Pseudo-Class not(): Design elements differently based on certain conditions.5. Nail CSS animation like a pro: Simplify complex animations with keyframes.