<link rel="stylesheet" href="<?php p(OCP\Util::linkTo('grauphel','grauphel.css')); ?>" type="text/css"/>
<div id="app-content" class="content">
<link rel="stylesheet" href="<?php p(OCP\Util::linkTo('grauphel','grauphel.css')); ?>" type="text/css"/>
<div id="app-content" class="content">