use a css stylesheet on a jinja2 template

Question

I am making a website using html, css, flask and jinja2.

I have a page working on a flask server, the buttons and labels etc. are displayed, but the css stylesheet I have is not loaded in.

How would I link a stylesheet to a jinja2 template. I have looked around on the internet but cannot find out how.

Here is the css stylesheet link; should I change this, or the python code?

<link rel="stylesheet" type="text/css" href="styles.css">

here is my flask code:

@app.route('/')
def resultstemplate():
    return render_template('questions.html', head='Welcome!')

here are the locations of the files:

/python-code.py /templates/template.html /templates/styles.css

Answer 1

All public files (the ones that are not processed, like templates or python files) should be placed into dedicated static folders. By default, Jinja2 has one static folder called static.

This should fix your problem:

1. Move /templates/styles.css to /static/styles.css

2. Update your code with following code, that will be translated into correct file location:

   <link rel="stylesheet" href="{{ url_for('static', filename='styles.css') }}">
   

More info on static files in Jinja2 is here.