[simplybook_widget]

<script src="https://cdn.jsdelivr.net/npm/iframe-resizer@4.3.6/js/iframeResizer.min.js"></script>
  <iframe id="formIframe" style="width: 1px;  min-width: 100%; border: none;" src="https://connect.bookitup.de/bookitup-forms/57635/html/bookitup-form-ea07d956-0f93-49e7-9254-4869dc6c2846.html"></iframe>
  <script>var f=document.getElementById("formIframe");f.addEventListener("load",function(){iFrameResize({heightCalculationMethod:"bodyScroll",checkOrigin:false},"#formIframe")});</script>