問題現象：加載出來的github無CSS樣式，無法使用
解決方案：
1：Windows
修改 C:\Windows\System32\drivers\etc 中的hosts文件
將下邊的內容添加進去並保存即可
# 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
2：Ubuntu
sudo gedit /etc/hosts 打開hosts文件並將解決方案1中的處理方法複製進去保存即可