body {
  background: url('images/bg1.png') no-repeat;
  background-size: 100% 100%;
  width: 100vw;
  height: 100vh;
  box-sizing: border-box;
  border: #f36d32 3px solid;
  padding: 0;
  margin: 0;
}
img {
  border: 4px solid #555;
}