<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/iframe-resizer/3.6.2/iframeResizer.min.js" crossorigin="anonymous"></script>
<style>#tandem_calendar { width: 1px; min-width: 100%; background: #FFF; border: 0px; clear: both; } </style>
<iframe id="tandem_calendar" src="https://uhigh.tandem.co/index.php?type=export&action=embed&limit=10&key_dates=true&gs=vahs-15pt&ds=000000-normal&ts=000000-normal&es=239e55-EF9D00&bg=FFFFFF&resizer=t" width="0" frameborder="0"></iframe>
<script>iFrameResize({log:true}, "#tandem_calendar");</script>