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# 两张图解释CSS动画的性能
在手机上使用CSS动画时很多时候会感到卡顿，然后网上很多教程说开启GPU加速 `transform: translate3d(0,0,0);` 可解决，但是为什么开启GPU加速就能让动画顺滑呢?
## 我们从浏览器内部去理解下
JS是单线程的，但是浏览器可以开启多个线程，渲染一个网页需要两个重要的线程来共同完成：
- Main Thread 主线程
- Comp…
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### Regression?
No
### System Info and Version
System/Version info
```sh
Hyprland, built from branch at commit 918d8340afd652b011b937d29d5eea0be08467f5 (flake.lock: update).
Date: Tue Jun…
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```
What steps will reproduce the problem?
1. run "cefclient.exe --off-screen-rendering-enabled" on windows 7 home premium
systems...
2. load url www.codeproject.com(or any url)
3. no page refresh oc…
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Needs some deep investigation work. Shadows definitely affect this.
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Stagger adds a really nice touch to animations like transition.slideUpIn, but I'm having an issue using it with large lists. My specific case is this: I have 100 items in a list, but only 5 are visibl…
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### Title
https://xemu.app/titles/4541005b/#Burnout-3-Takedown
### Bug Description
Only Race is visible and car select screen without hud
Whole Menu + Intro is black.
### Expected Behavior
Gam…
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### Title
https://xemu.app/titles/5451001a/#Nickelodeon-SpongeBob-SquarePants-in-Battle-for-Bikini-Bottom
NTSC
### Bug Description
Using the Bubble Bowl action on the first frame you get placed …
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```
What steps will reproduce the problem?
1. Upgrade from cefpython 29.4 to 31.0.
2. Display any animation with velocity.js.
3. Animation stutters.
What is the expected output? What do you see inst…
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```
What steps will reproduce the problem?
1. Upgrade from cefpython 29.4 to 31.0.
2. Display any animation with velocity.js.
3. Animation stutters.
What is the expected output? What do you see inst…
-
```
What steps will reproduce the problem?
1. Upgrade from cefpython 29.4 to 31.0.
2. Display any animation with velocity.js.
3. Animation stutters.
What is the expected output? What do you see inst…