Hi wex,
I solved this issue by using custom html widget.
Regards
Devin
3. if i using below code on page/post, it can change video window size: <iframe width=”560″ height=”315″ src=”https://www.youtube.com/embed/MZGgJuTJzkY” frameborder=”0″ allow=”autoplay; encrypted-media” allowfullscreen></iframe>
But no change on Front Page.
Dear, I have the same problem, is it put the code in below functions.php file?