html, body { height: 100%; }

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: white;
  display: flex;
  flex-direction: column;
  color: #333;
}

main { flex: 1 0 auto; }

.impressum{
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
  line-height: 1.6;
}

.kurs-header h2 {
  width: 60px;
  height: 60px;
  background-color: var(--primary-color);
  border-radius: 100px;
  padding: 5px;
  color: #ffffff;
  margin-bottom: 0px;
  justify-content: center;
  align-items: center;
  display: flex;
  margin-bottom: 15px; 
  font-size: 40px;
  font-weight: lighter;
}

.kurs-header{
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (max-width: 520px) {
  .kurs-header h2 {
    width: 30px;
    height: 30px;
    background-color: var(--primary-color);
    border-radius: 100px;
    padding: 5px;
    color: #ffffff;
    margin-bottom: 0px;
    font-size: 20px;
  }

  .kurs-header h1 {
    font-size: 20px;
  }

  .impressum strong {
    font-size: 15px;
  }

  .impressum p {
      font-size: 13px;
  }
}