body {
  font-family: Arial, sans-serif;
  margin: 20px;
  padding: 20px;
  background-image:url('../Images/gray-abstract-wireframe-technology-background.jpg');
  background-size:cover;
  margin:0 200px;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

h1 {
  color: #154360;
}

section {
  margin-bottom: 40px;
}

h2 {
  color: #808B96;
}

address {
  margin-bottom: 20px;
}

.signature {
  margin-top: 40px;
  text-align: right;
  color: #C2C2C2;
}