Hey @danielevy18, thanks for posting and using Zoom!
Please try using the following code:
<div class="iframe-container" style="overflow: hidden; padding-top: 56.25%; position: relative;">
<iframe allow="microphone; camera" style="border: 0; height: 100%; left: 0; position: absolute; top: 0; width: 100%;" src="https://zoom.us/wc/join/6020659971" frameborder="0" sandbox="allow-forms allow-scripts"></iframe>
</div>
Thanks,
Tommy