Failed to Load Resource: the Server Responded With a Status of 404 (Not Found) CSS

Failed to load resource: the server responded with a status of 404 (Not Found)

Your files are not under the jsp folder that's why it is not found.
You have to go back again 1 folder
Try this:

<script src="../../Jquery/prettify.js"></script>

Failed to load resource: the server responded with a status of 404 (Not Found) css

you have defined the public dir in app root/public

app.use(express.static(__dirname + '/public'));

so you have to use:

./css/main.css

CSS - Failed to load resource: the server responded with a status of 404 ()

If your _css directory is in the root, your CSS link should start with a slash:

<link rel="stylesheet" href="/_css/style.css">

But naming your directory _css may be a problem. Github Pages by default treats your site as a Jekyll website, which processes your files and does not publish files/directories having _ prefix.

I think you have 2 options:

If you don't know about Jekyll and you are not creating a Jekyll site, put a file in your root named .nojekyll to bypass Jekyll processing.
Rename your directory from _css to css and also modify your <link> tag.

Failed to load resource: the server responded with a status of 404 (Not Found) -- favicon not loading

I believe you're missing the script tags at the end of your aboutus page. Try adding these lines just before you close your body tag.

<!-- jQuery first, then Popper.js, then Bootstrap JS. -->
<script src="node_modules/jquery/dist/jquery.slim.min.js"></script>
<script src="node_modules/popper.js/dist/umd/popper.min.js"></script>
<script src="node_modules/bootstrap/dist/js/bootstrap.min.js"></script>

Django - CSS file not working. Getting error 404 . Failed to load resource: the server responded with a status of 404 (Not Found)

Your code redefines the urlpatterns after adding the static routes. Your urlpatterns in urls.py must be in this order:

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('GalaxyOffset.urls')),
]

urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

And basic.css:

body{
background: url('{% static "images/photo1.jpg" %}') no-repeat center center fixed;
-webkit-background-size: cover;
-moj-background-size: cover;
-o-background-size: cover;
background-size: cover;
background-color: #f5fbff;
}