Answers for "background image auto width"

html background image fit to screen

body {
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

how to change the width of a background image in css

#example1 {		/* Example1 has an auto background size */
  background: url(mountain.jpg);
  background-repeat: no-repeat;
  background-size: auto;
}

#example2 {		/* Example2 has an fixed background size */
  background: url(mountain.jpg);
  background-repeat: no-repeat;
  background-size: 300px 100px;
}

background image height and width

.class{
	background: url("../images/icons/map.png") no-repeat center center/50px 50px fixed;
}