How to change font family and font size ?

[inix]

The default font size seems more larger than other fonts.
How to change it?

[RunDevelopment]

By default, Prism's themes will use the font size of the parent element and some monospace font that is specified by the theme (example).

You can change the font family like this:

code[class*="language-"],
pre[class*="language-"] {
  font-family: 'My cool font', monospace;
}

And the font size like this:

code[class*="language-"],
pre[class*="language-"] {
  font-size: 12px;
}

However, when using a relative font size (e.g. 80%, 0.8em), it is important that you only apply it once! Prism uses <pre><code> elements for code blocks, so setting font-size: 80% on both of them will stack and cause the code to be displayed at only 64% its original size.

Use this instead:

:not(pre) > code[class*="language-"],
pre[class*="language-"] {
  font-size: 80%;
}

Hope this helps.

[inix]

OK,Thank you. I will take a look.