The css,js file that resolves the GitHub site is wall

I opened the GitHub website two days ago and wanted to push something up, and I found GitHub to be like this!

At first I didn't care. Thought it was God horse network problem, and then ignored it. Results today again open to see or so, whether it is using chrome Firefox can not open, I direct Baidu received a bit, very simple obviously by the wall!

Then I was in Baidu, tried seven or eight times, said what in the Hosts file to change the IP is not used. After the find a way to try to become!!!
Workaround: Modify the Hosts file in the C:\Windows\System32\drivers\etc

# GitHub Start
192.30.253.112 github.com
192.30.253.119 gist.github.com
151.101.100.133 assets-cdn.github.com
151.101.100.133 raw.githubusercontent.com
151.101.100.133 gist.githubusercontent.com
151.101.100.133 cloud.githubusercontent.com
151.101.100.133 camo.githubusercontent.com
151.101.100.133 avatars0.githubusercontent.com
151.101.100.133 avatars1.githubusercontent.com
151.101.100.133 avatars2.githubusercontent.com
151.101.100.133 avatars3.githubusercontent.com
151.101.100.133 avatars4.githubusercontent.com
151.101.100.133 avatars5.githubusercontent.com
151.101.100.133 avatars6.githubusercontent.com
151.101.100.133 avatars7.githubusercontent.com
151.101.100.133 avatars8.githubusercontent.com
# GitHub End

The above information comes from the website: http://neue.v2ex.com/t/320178, thanks to the comment area Chenxuhua share.

After saving. Everything's all right.

The css,js file that resolves the GitHub site is wall