Answers for "how to set css background image with %"

css background image

background-image: url("image.png");
background-position: center;
background-repeat: no-repeat;
background-size: cover;

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");
}