If you want to put text underneath an image that “floats” to the left (or right), you can use this code:
<div style="margin-bottom:0;">
<div style="float: left;">
<img src="https://nwscdn.com/media/wysiwyg/FORZA/MenHandballSize_Chart2.png" style="width: 700px;" alt="mens & boys handball size by age"/>
</div>
<div style="clear: both;">
text text text
</div>
</div>
For personal reference, this is the code I need with the correct class for my website:
<div class="content-item" style="margin-bottom:0;">
<div style="float: left;">
<img src="https://nwscdn.com/media/wysiwyg/FORZA/MenHandballSize_Chart2.png" style="width: 700px;" alt="mens & boys handball size by age"/>
</div>
<div style="clear: both;">
text text text
</div>
</div>