Bad at CSS

What can you do with a single CSS keyframe? A metric ton.

0:00 - 50% keyframes are magic
0:49 - Animation is easier than you think
2:17 - Why at 50%?
6:51 - Trick 1 Shake
12:00 - Trick 2 Pulse
23:25 - Trick 3 Glitch
27:55 - Trick 4 Flip
32:45 - Trick 5 Fill
41:20 - Trick 6 Sheen
44:25 - Trick 7 Emphasize
46:50 - Trick 8 Censor
48:35 - Trick 900 Tony Hawk
Links
Bad at CSS - https://twitter.com/badatcss
Adam Twitter - https://twitter.com/argyleink
David Twitter - https://twitter.com/_davideast
Codepen Demo: https://codepen.io/davideast/pen/MWxvzjm
Open Props: https://open-props.style

CSS is Hard. Each and every year. So what are the things that we should improve on in 2024?

Container Queries are one of those CSS features everyone is so hyped about and with good reason. They give us a modern way to build and scope responsive components based on the size of the parent element rather than the browser view port. But, I’m not gonna lie. There’s a lot to this new feature.

View Transitions are a brand new totally rad cutting edge feature in the browser. They allow you to specify animation states from one state to another a lot easier than ever before. But guess what? We’re still bad at them. In this episode Adam explains how awesome View Transitions are by explaining the difficulties of the FLIP animation technique. Adam then discusses how he struggled, but finally succeeded, to build a morphing button with View Transitions. Oh and we also discuss how Adam isn’t a TypeScript fan, but you’ll have to listen to the end for that part.

Links:

Morphing Button - https://youtu.be/N2BKAKwGP6M

View Transition Pseudos Visualized - https://codepen.io/bramus/full/xxQKvJP

View Transitions like isotope.js - https://codepen.io/argyleink/pen/VwBKjwj

Chapters:

0:00 We are bad at CSS

0:54 Why are we talking about View Transitions?

4:03 Adam sings MMMBop

4:24 What problem are View Transitions solving?

5:29 Adam’s Mickey Mouse impression

5:44 Using FLIP to explain what View Transitions solve

6:27 Adam’s amazing getBoundingClientRect() joke

6:45 Using FLIP to explain what View Transitions solve

9:00 Tweening was easier in Flash

10:45 View Transitions simplify the amount calculations needed to animate

12:54 David is plugged into the Matrix

13:40 MPA View Transitions require no work! (but need a flag)

14:20 We are going to see some of the most wild transitions

16:35 What is Adam bad at with View Transitions?

22:04 What is a functional pseudo selector and why is it so fun to say?

23:50 Adam continues to be bad at View Transitions

25:35 Adam gets to talk to browser engineers to tell him why he’s bad

26:33 A rare case where height 100% did something

29:10 Adam gets even worse at View Transitions

30:00 Understanding view transition image pair and view transition group

35:29 David is bad at Sesame Street

37:55 An amazing visual of View Transition Groups and Pairs

39:52 Can you use other properties than transform and opacity?

40:27 Adam’s leaves to go tend to his kids

42:00 We’re finally wrapping up

45:33 Fun fact: Adam is not a TypeScript fan

47:12 View Transitions like isotope.js

49:32 Stay humble or CSS will humble you

Video moments

23:10 - functional pseudo selector

30:00 Understanding view transition image pair and view transition group

34:00 Especially here

37:55 An amazing visual of View Transition Groups and Pairs

47:12 View Transitions like isotope.js

The amazing Chris Coyier (founder of CSS-Tricks.com and CodePen.io) sat down with us to tell us all the things in CSS that he's bad at. He even brought us a list.