Incorrect styling of your published website may have several causes:

The stylesheet refers to the incorrect location

Be sure to update the baseURL in config/_default/hugo.toml.

The certificate of your website has expired or is not set up correctly

Hinode adds an integrity check and crossorigin validation to protect against manipulation of the site’s stylesheet. Most browsers will refuse to load the stylesheet if the website’s certicate is invalid. Ensure your certificate is valid and properly loaded, for example by clicking on the lock icon in the address bar of your browser. Check with your hosting provider if the certificate is invalid.

The DNS is not updated yet

You typically need to update address the records of your DNS provider when using a custom domain. For example, the website https://gethinode.com uses CloudFlare as DNS provider and Netlify as hosting provider. The CloudFlare DNS records includes a CNAME record that links gethinode.com to the endpoint gethinode-docs.netlify.app. It may take some time for all DNS records to have been propagated properly.

The browser has cached a previous version of the website

Your browser might retain an older copy of your website and its resources in memory. Clear the browser cache if needed and reload your website. Google Chrome provides the option to empty the cache and perform a hard reload for a specific site when using the developer tools. You can add ?nocache=1 to your address in Safari to bypass the cache.