How do put a full cover background image

Question

Help me

Answer 1

Use CSS:
html {
background: url(images/bg.jpg);
background-size: cover;
}

Answer 2

👆This guy left sololearn forever because any one did not answered his question ☹️

Answer 3

background-size: cover;

Answer 4

Which launguage learn first anyone help plese i am new