Users can anyone help me centering the video in middle of the screen

Hello please help me because i said my clients that i would give up their website to them as soon as possible by 3 following days but i cant center the video/embed link in the middle of the webpage.This is the script i trying to center it but it dosent work: (html)


Please rectify me and send the solution soon for support

Hello @Adcrs_onyt, welcome to the forum. I can’t see the script. Please review your post