Here in bold you can see where my problem is – unnecessary empty lines in the table. But I cannot find a spot in your plugin documents to delete them…
<td class=”mptt-shortcode-event event” data-column-id=”874″ rowspan=”2″ style=”height:70px;”>
<div data-id=”17″ data-event-id=”881″ data-start=”13″ data-start-item=”13″ data-end=”15″ class=”mptt-event-container id-17 mptt-colorized” style=”text-align: center; height: 100%; top: 0%; color: rgb(0, 0, 0); background-color: rgb(201, 112, 100);” data-type=”event” data-bg_hover_color=”” data-bg_color=”rgb(201, 112, 100)” data-hover_color=”” data-color=”rgb(0, 0, 0)”>
WOD <p></p>
<p class=”timeslot”>
<span class=”timeslot-start”>06:30</span>
<span class=”timeslot-delimiter”> – </span>
<span class=”timeslot-end”>07:30</span>
</p>
<p class=”event-description”>Karol</p>
<p></p></div>
</td>