background-image: url('img/sign-up'); code example
Example 1: background image css
.selector {
background-image: url(image.png);
}
Example 2: add background image in css
.w {
background-image: url("images/tom1.png");
}
.a {
background-image: url("images/tom2.png");
}
.s {
background-image: url("images/tom3.png");
}