body {
  font-size: 120%;
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.4;
  color: #263238;
  background-color: #ffffff;
  margin: 0;
}
 h1 {
  font-size: 3rem;
  font-weight: normal;
  text-align: center;
  padding: 2rem;
  margin: 0;
}
nav {
  background-color: #263238;
}
nav ul {
  margin: 0;
  display: flex;
  list-style: none;
}
nav a {
  color: white;
  text-decoration: none;
  display: block;
  padding: 0.8rem;
}
nav a.aktuell {
  font-weight: bold;
}
main {
  max-width: 62rem;
  margin: auto;
  display: flex;
}
article {
  width: 50%;
  margin: 0 2rem;
}
footer {
  background-color: #263238;
  color: #ffffff;
  padding: 2rem;
  margin-top: 1rem;
}

img {
  max-width: 100%;
  height: auto;
}
@media screen and (max-width: 530px) {
  main {
    display: block;
  }
  article {
    width: auto;
  }
}