https://katex.org/docs/browser has a <link rel="stylesheet" …> in its starter template. While you may be able to download the file from its href attribute and copy its contents into your style.css, in most situations it would be preferable to just get that tag itself copied to the index.html of your Angular project. If you copy the CSS content instead of the link tag, make sure to also get all the files that the stylesheet references, fonts in particular.
https://katex.org/docs/browser has a
<link rel="stylesheet" …>in its starter template. While you may be able to download the file from itshrefattribute and copy its contents into yourstyle.css, in most situations it would be preferable to just get that tag itself copied to theindex.htmlof your Angular project. If you copy the CSS content instead of the link tag, make sure to also get all the files that the stylesheet references, fonts in particular.