Background-image/color full width!

Question

Hello guys,...I would like to achieve full background image/color on my website using <div> element.
i want it to be full in that it fits the white parent background color...
kindly the CSS code ?

Answer 1

do you mean that the width and/or height are as big as the screen?
then use width:100vw and height:100vh

Answer 2

<div> </div>

div{
background-color: green;
background-image: url("image.png");
}

or

<div><img src="image.png"/></div>

div{
background-color: green;
}

img{
width: 100%;
object-fit: fill;
}