Text box for a reflowable epub

[emiliec23]

Hi

I'm trying to create a text box that will flow with my text in the epub and end up looking like this:

Can anyone tell me how I would go about doing this? I need to do this multiple times over the length of the book. Any help will be much appreciated

[AntsTuur]

Hi

in css you must define for the box

page-break-inside: avoid;

A