Push on github can't show background

[KenHuangTW]

Chinese:
我在 main.styl 裡面設定背景圖片

body {
    background:url(/images/background.jpg);
    background-repeat: no-repeat;
    background-attachment:fixed;
    background-position:50% 50%;
}

並且在 localhost確認是可以顯示的
但一推上 github 就沒辦法顯示背景圖片了，請問我有少做哪個必要步驟嗎?
除了

hexo clean
hexo g
hexo d

English:
I set background in path: blog\themes\next\source\css\main.styl

body {
    background:url(/images/background.jpg);
    background-repeat: no-repeat;
    background-attachment:fixed;
    background-position:50% 50%;
}

Than I use hexo server to check on localhost:4000 , it's normal.
But when I push on github, background always can't show.

[KenHuangTW]

And You just wait sometimes.

[yoshinorin]

@KenHuangTW

Is this problem solved?
I visit your site and I can see the background image correctly.

https://kenhuangtw.github.io/

[KenHuangTW]

Yes. That can work on github page. Just wait sometimes.