Hello -

Newbie here and used the content you tube widget to insert videos but trying to validate site I get this message "The frameborder attribute on the iframe element is obsolete Use CSS instead". I Peter's above link to using css lazy load and assume I can copy and paste this and just replace the you tube embed reference number. This what I found :-

<iframe frameborder="0"
class="lazyload"
loading="lazy"
allowfullscreen=""
width="600"
height="400"
data-src="//www.youtube.com/embed/ZfV-aYdU4uE">
</iframe>


There is also a script underneath and I just wanted to know where I should copy this script to...

Thanks in advance

Stewart