<h2>Stundenplansuche</h2>
<div class="timetable_searchbox">
    Suche Stundenplan: <input type="text" name="searchstring" autocomplete="off" placeholder="Suchtext..." class="searchstring"/>
    <div class="searchresult"></div>    
    <div style="display: flex;  flex-wrap: wrap;">
        <div class="timetables"></div>
    </div>
</div>