Is it possible different heading fonts

Site URL: https://salmon-point-95cw.squarespace.com

hi, I'm currently looking to add multiple different heading fonts to a site (based on client branding). meaning

H1 is a Serif H2 is a SanSerif Bold Condensed and H3 is SanSerifBold 
I wanted to know if it was possible in SQS 7.1. 

the code I;ve written  is; 

 

@font-face {

    font-family: 'CenturyStd-BookCondensed';

       src: url('https://static1.squarespace.com/static/5fb416364969ce203f16ed18/t/5fe0afc5f5f64226567e6289/1608560581851/CenturyStd-BookCondensed.otfFontURL');

    font-family:'HelveticaNeueLTPro-BdCn';
src: url(https://static1.squarespace.com/static/5fb416364969ce203f16ed18/t/5fe0b55e2da99c286853b0d6/1608562014139/HelveticaNeueLTPro-BdCn.otf);
  
  font-family: 'HelveticaNeueLTPro-Bd';
src: url ('https://static1.squarespace.com/static/5fb416364969ce203f16ed18/t/5fe0afe11c66f52f5fc06445/1608560609493/HelveticaNeueLTPro-Bd.otf');
  }

h1 {
font-family: 'CenturyStd-BookCondensed';
}

h2 {
  font-family:'HelveticaNeueLTPro-BdCn';
}

h3 {
  font-family:'HelveticaNeueLTPro-Bd';
}
 

Hi. Yes. This is possible. Can you share access password? We can help easier.