var loading_template = `

<style>
body{
	background-color: #f7f6f6;
}

</style>

<main >

	<div class="mt-5 d-flex flex-column align-items-center justify-content-center">
	   <div class="row mt-5">
	       <div class="spinner-border" role="status" style="width:15rem;height:15rem">
	           <span class="sr-only"></span>
	       </div>
	    </div>
	    <div class="row mt-2">
	      <h3><strong>Lade Daten...</strong></h3>
	    </div>
	</div>

</main>

`;