body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #111;
  color: #eee;
}

.startseite {
  background: url('../img/bg-car.jpg') no-repeat center center fixed;
  background-size: cover;
}

.start-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.7);
}

.branding h1 {
  font-size: 3em;
  margin: 0;
  color: red;
}

.branding p {
  font-size: 1.2em;
  margin: 10px 0 20px;
}

.btn {
  background: red;
  color: white;
  padding: 12px 24px;
  text-decoration: none;
  font-weight: bold;
  border-radius: 5px;
}