adding custom font but not showing on mobile site

Site URL: http://joedelgado.co

Hello,

I am using the Wells template and wanted to change to font of my Site Title to the font Dandelion JF and the rest of the site to Montserrat.  I have cut and pasted a code from another site which is pasted below. The fonts do not change on the mobile site maybe not even on my desktop since they are downloaded.  The fonts are not Google, they are custom.  Could someone please help with my error(s)?  Thank You in advance.

@font-face {

    font-family: 'DandelionJFhttps://static1.squarespace.com/static/597e7fc9b3db2bde61e34111/t/5f9e2a6323663121179a7ff7/1604201059887/DandelionJF.ttf';

       src: url('FontURL');

  }
/* Font Recoleta Site Title */
.logo.site-title a {
   font-family: 'DandelionJF' !important;
}
/* Font Nav */
div#topNav a {
   font-family: 'montserrat' !important;
}

Hi,

Remove this code

@font-face {

    font-family: 'DandelionJFhttps://static1.squarespace.com/static/597e7fc9b3db2bde61e34111/t/5f9e2a6323663121179a7ff7/1604201059887/DandelionJF.ttf';

       src: url('FontURL');

  }

add new code

@font-face {
    font-family: 'DandelionJF';
	src: url(https://static1.squarespace.com/static/597e7fc9b3db2bde61e34111/t/5f9e2a6323663121179a7ff7/1604201059887/DandelionJF.ttf);
  }