<h1 style="text-align: left;">
    Termine
</h1>
<style type="text/css">
.content {
    width: 100%;
    height: 100%;
    margin: 0 auto;
}
.embed-container {
    height: 500px;
    width: 100%;
    padding-bottom: 50%;
    position: relative;
}
.embed-container iframe {
    min-width: 100%;
    width: 10px;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}</style>
<div class="content">
    <div class="embed-container">
        <iframe frameborder="0" src="https://appack.de/rest-api/drender/5bed742534fc7ea3ae08096a"></iframe>
    </div>
</div>