body {
  background-color: gray;
  /*background-image: url('background.jpg');           
  background-repeat: repeat;
  background-size: 100px;*/
  margin-left: 400px;
  margin-right: 400px;
}
h1 {
  color: rgb(255, 0, 0);
  text-align: center;
  font-size: xx-large;
  font-family: sans-serif;
}
div {
  background-color: chocolate;
  color: rgb(15, 56, 7);
  text-align: center;
  max-width: 600;
  width: 400;
}
#car {
  background-color: rgb(77, 105, 89);
  color: rgb(13, 41, 78);
  text-align: center;
  max-width: 600;
  width: 400;
}
#cars {
  background-image: url("imagsadasasdes.jpg");
  background-size: 200px
}