no, it doesn’t work
I put this code
.video-responsive{
overflow:hidden;
padding-bottom:56.25%;
position:relative;
height:0;
}
.video-responsive iframe{
left:0;
top:0;
height:100%;
width:100%;
position:absolute;
}
into Theme -> Customize -> Additional CSS
but looking from smartphone or tablet in portrait view (the standard view for smartphone), the you tube vide object is too large and is cut on the right.
what can I do ?