I don't want it to have sound, I just want it to start automatically

Hi, i add the video using the video section on theme dawn, should i use a css code to play it automatically? The video has no sound.

thank you, I solved it myself. Codes had been added in the liquid section!

hello, I need to put the video on the password page in autoplay, the video is already muted. Any suggestions?Here is the site :https://avngrdvision.com/password 

hello I can't send it to you because it's not online with a password so there's no link, I'll leave you the drive link where you can see the screenshot of the page: https://drive.google.com/file/d/1LtWJWMhLBjvVs6mBy0y6ujGU7vYskMyc/view?usp=sharinghtt...

hello, on the password page I see a grey bar between the two sections, I managed to remove it on the web version using the code:.password {height: 1800;}but I cannot remove it from the phone version.