Background image all screen resolution ( my code cut photo)

Question

The background image I want to adjust to all resolutions, but when writing background-size: cover; the whole photo is not visible and cut in half, why?

*, html{
margin:0;
padding: 0;
height: 100%;
width: 100%;
background-image: url('../img/image3.jpg');
background-repeat: no-repeat;
background-attachment: fixed;
background-size: cover;

Answer 1

https://www.sololearn.com/Discuss/726140/?ref=app

Go and check it ..☑️