Making an image from a 3rd party link bigger

Hi,

I tried searching for some clues and messed around on the w3schools site to try some things out, but I’m having a hard time getting the image in this link from a publishing company to appear larger…

<center><div id="digitalCalDiv" style="height: 80px; width: 116px;">?</div>
<script>
   (function() {
      var e = document.createElement( 'script' );
      var displayname = 'true'; /* true/false: display the calendar name as a link */
      /* do not modify below this line */
      e.async = true;
      e.src = 'https://illst.us/64EK09/?displayname=' + displayname;
      document.getElementById( 'digitalCalDiv' ).appendChild(e);
   }());
</script></center>

I want it to match roughly the same size as the other photos/widgets on my page… https://www.magnoliagardensalf.com/events/

Increasing the height and width did not work for me. I’m fairly new at this, forgive me if I overlooked something simple.

Thanks.