body{
    padding: 0px;
    margin: 0px;
    background: white;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
      Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

header {
  padding: 0px;
  margin: 0px;
  padding-left: 10px;
  padding-top: 10px;
  position: sticky;
  top: 0;
  background-color: #ffffff;
}

.mitte {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-left: 16px;
  padding-right: 16px;
}

section {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
  line-height: 1.5em;
}