body {
  max-width: inherit;
  background-color: white;
}

div.pfeil {
  position:sticky;
  top: 0;
  height: 2em;
}

img {
  max-width: 20em;
  margin-left:  20%;
  margin-top:10em;
}

h1 {
  background-color: khaki;
  font-size: 10em;
  border-color: red;
  border-style: groove;
  border-width: 0.5em;
  text-align: center;
  margin: auto 0.1em;
  padding-top: 5em;
  padding-bottom: 3em;

}
a {
  text-decoration: none;

}