.blau {background: #edf5f4;}
.rot {color: #d40000;}
code, pre {font-size: 134%;}


h1, h2, h3, h4, h5, h6 {
  margin: 0;
  padding: 0;
  font-weight: bold;
  font-family: Helvetica, Arial, sans-serif;
}

h1 {
  font-size: 170%;
}

h2 {
  font-size: 160%;
  line-height: 130%;
}

h3 {
  font-size: 140%;
}

h4 {
  font-size: 130%;
}

h5 {
  font-size: 120%;
}

h6 {
  font-size: 110%;
}