🔥 There are 255 Hot Tips

🔥 Use CSS object-fit: contain; and object-fit: cover; to scale 100% width and 100% height images as large as they will go without messing up aspect ratios.

Works with <video> in most browsers except IE+Edge

🔥 You can set and use variables inside a CSS declaration. Handy for when you need the same value more than once!

🔥 VS @code just launched Live Share, which means you can do pair programming and code sharing right from your editor!

🔥 Since :before and :after are first class CSS Grid items, this “lines on either side” design can easily be accomplished in ~10 lines of CSS

🔥 Text Pastry is a super handy plugin for inserting incremental numbers at each cursor. Available for VS Code, Sublime and Atom.

🔥 CSS Grid doesn’t do masonry/pinterest layout, but if you pre-define a few consistent sizes, grid-auto-flow: dense; works really well!

🔥 In Emmet, you can use $@15 to start numbering from any number.

🔥 Multiple caret trick in VS Code/Sublime/Atom. Did this neat trick in my React course that everyone asks about - enjoy!

🔥CSS Variables and CSS grid have the same browser support so you can use vars to define row/col/gap and update with JS

🔥 ResizeObserver is coming to browsers, which means we can have resize events on a per-element basis. (Element queries anyone?!)