While CSS files apply style instructions to general areas such as the background and the main document text, some CSS template files specify certain tags that may not match the tags in your document.

To use custom CSS in Obsidian, go to Settings > Appearance, scroll down to CSS snippets, enable it, and then place your .css files in the snippets folder that appears. Obsidian will automatically ...

Open the CSS file in a text editor. Specify the font size and family for the body of the Web page. For this example use:body { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14pt ...