and what to enter in the 2nd screen ?#video {
margin: 0 auto;
}
I'm not familiar with wordpress/mufinbuilder plugin, but I think the second screen your trying to add a class for the html video element? If that's the case then put w.e you want it to be.
.whateveryouchoose {
margin: 0 auto;
}
Well it says CSS class.
"#" is for ID and "." is for Classes. You can use "video" if you want. So it'll be:
.video {
position: absolute;
margin: auto;
top: 50%;
left: 50%;
}
/* The above code centers it directly in the middle of the webpage */
And in the last tab:
video