Hi Ciaran,
here is the page I am working on:
https://redscorptec.de/blog/faszination-makrophotografie
I tried to embed a video from YouTube and set the size of the iFrame responsive in relation to the window. So that the correct width and especially the height can be adjusted to the format on the PC, tablet or mobile phone.
I have found a solution, I guess: I inserted this custom css code into the template and let the module access it:
.responsive-video {
position:relative;
padding-bottom:56.25%;
padding-top:15px;
height:0;
overflow:hidden;
}
.responsive-video iframe {
position:absolute;
top:15px;
left:10%;
width:80%;
height:80%;
}