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⚠️The latest release refactored our HTML, so double-check your custom CSS rules!⚠️

# Add your own CSS rules

To customize the look of your site further, you can customize your CSS stylesheets, as described in the ReadTheDocs Docs.

First, create a CSS file and place it in `_static/custom.css`. An example CSS file to change the color of the top-level headers might look like this.

    h1 {
        color: #003B71 !important;
    }

You also need these two lines in your `conf.py` file

    html_static_path = ["_static"]
    html_css_files = ["custom.css"]