I tried doing it by creating a css file style.css in the same folder, copied the source code of the bulma link provided and then linked it to my html doc. But then, it shows no css features at all.
Unfortunately you cannot edit resources that are hosted on our CDN. Many, many sites rely on these resources remaining intact and the same forever!
You can however modify the styling on your site whilst using this resource by first including it in your website's HTML (within in the head tag):
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bulma/0.7.5/css/bulma.min.css" integrity="sha256-vK3UTo/8wHbaUn+dTQD0X6dzidqc5l7gczvH+Bnowwk=" crossorigin="anonymous" />
You can then modify this styling by creating a secondary CSS file locally alongside your site's HTML file, calling it my-styles.css for example. You can then also include that on your webpage by using another link tag within your head tag, after the link for bulma:
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bulma/0.7.5/css/bulma.min.css" integrity="sha256-vK3UTo/8wHbaUn+dTQD0X6dzidqc5l7gczvH+Bnowwk=" crossorigin="anonymous" />
<link rel="stylesheet" href="my-styles.css" />
Hope that helps with what you are trying to achieve!
- Matt. Community Manager @ cdnjs.com