.bg-1 {
  background-image: url("img/dithered_image-4.png");
}

.box-1 {
 border-style: double; 
}

body {
  background-color: white;
  color: black;
  font-family: Verdana;
  width: 600px;
  margin: auto;
  line-height: 1.4;
  margin-top: 100px;
  padding: 20px;
}

h1 {
  font-family: Verdana;
}

img {
 display: block;
 width: 500px; 
 margin: auto;
 margin-top: 20px;
 margin-bottom: 20px;
}