body {
  font:
    20px Helvetica,
    sans-serif;
  color: #333;
  text-align: center;
  padding: 20px;
  background-color: black;
  color: white;
}

@media (min-width: 768px) {
  body {
    padding-top: 10px;
  }
}

h1 {
  font-size: 50px;
}

article {
  display: block;
  text-align: left;
  max-width: 650px;
  margin: 0 auto;
}

img {
  width: 100%;
}

a {
  color: #dc8100;
  text-decoration: none;
}

a:hover {
  color: white;
  text-decoration: none;
}

.logo-sub {
  width: 300px;
  display: block;
  margin: 0 auto 0;
  max-width: 100%;
}

.logo {
  width: 450px;
  display: block;
  margin: auto;
  padding-bottom: 40px;
  max-width: 100%;
}