Not with Limesurvey "board equipment". But I am sure there are solutions out there, that allow you to do this with Javascript. So have a Google search. You can then implement it on the Welcome text. But don't forget to allow the use of Javascript in the LS admin backend.
Help us to help you!
Provide your LS version and where it is installed (own server, uni/employer, SaaS hosting, etc.).
Always provide a LSS file (not LSQ or LSG).
Note: I answer at this forum in my spare time, I'm not a LimeSurvey GmbH employee.
If LS 2.5 or LS 3.X is used with a bootstrap theme/template, you can simply add examples.
E.g. post this into a questiontext (Sourcecode mode!).
Code:
<div class="container">
<h2>Simple Collapsible</h2>
<p>Click on the button to toggle between showing and hiding content.</p>
<button class="btn btn-info" data-bs-target="#demo" data-bs-toggle="collapse" type="button">Simple collapsible</button>
<div class="collapse" id="demo">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</div>
</div>
