body {
  margin: 0;
border-top: 7px solid #fbefef;
  background: #fbefef;
}
img {
  display: block;
  margin: 0 auto;
}

@media screen and (min-width: 1200px) {
  img { width: 1200px; }
}

@media screen and (min-width: 800px) and (max-width: 1199px) {
  img { width: 800px; }
}

@media screen and (max-width: 799px) {
  img { width: 100vw; }
}