Squarespace returning me a syntax error for style tag.

Site URL: https://gregorylassale.com

I am trying to apply this simple CSS script

<style>
  @media screen and (max-width:640px) {
  h1#sqs-slash-page-header {
    font-size: 30px !important;
}
  }
</style>

But Squarespace is returning a syntax error at line 263 which is just the style opening tag. Any idea why??

Hello there,

You cannot apply CSS to your website using <style> tags in the Custom CSS menu. If you need to use <style> tags, you can insert them in the Advanced > Code Injection > Header/Footer areas for site-wide codes.

You can also apply <style> tag codes to individual pages by navigating to Pages > Index Settings/Settings > Advanced > Page Header Code Injection and insert the code for each individual page you want the code to be applied.

Oh duh. Thanks @Wolfsilon