After pressing the “开始” button, the animation will play normally for about 5 seconds.
After that, the animation will be extremely stuttering, and the animation frame of the original 20ms will rise to about 300ms.
The devtools performance tool analysis results suggest that this may be related to garbage collection after the JS heap is full.

The problem exists under the v1.6.4, v3.6.0, v3.6.1 of jQuery. So, the problem is probably not much related to dependencies.

background:#EEE url(bg.jpg);

but there's no bg.jpg file

我从微博过来围观了,哈哈 ←_←

有个bug--鼠标点三次会停止并弹窗“今天别吃了”，但按enter却不会触发

mobile compatible

1. the button is too smal to click comfortable.
2. the font-size is a little bit smal and I suggest using rem as the measuring unit.

others

1. change the project name to what2eat for a great "bigger".
2. supporting i18n will push the project to the all world.

给女朋友做了一个，让她每天不用愁去哪个食堂