Positioning
Position Absolute Center
Transitions
Slide Elements In and Out (Like an Accoridan)
Draw Underline
Note: this is a common pattern in CSS that enables you to insert a div :before or :after an element. Highly recommend taking advantage of it!
Expand Border Out (With box shadows)
Note: the regular transition with border is not clean (goes from out to in and is not smooth), so it is recommended to use box-shadow transitions instead. This trick makes use of drawing a border with a box shadow.
Note: I utilize this website to visualize my box shadows.
Box Shadow Lift
Push Button Down
Typography
Clamp Text to x lines
Hyphenates word if it goes off the page - great for article-like content!
Custom Text Highlight Color
Text Shadow (make your text pop on top of a background color!)
Text Sizing using clamp (this can also be used for spacing)
Misc
Image No Drag