Can't set "font-size" in index.styl

[bhdgogogo]

I wrote something in index.styl, as follows

.content {
  font-size: 40px;
}

but it's noneffective, my blog's font size is the same as before.

Can you explain to me why? and I want to know how to configure font size in my blog...

I hope you can give me an answer.

Thank you for your time~

• Your OS:
• Node.js version: ^16.13.1
• VuePress version: ^1.9.9
• VuePress-theme-reco version: ^1.6.17
• Which package manager did you use for the install(npm/cnpm/yarn/pnpm)? yarn