body{
    padding: 25px;
    background-image: url("https://media.licdn.com/dms/image/v2/D4D12AQFxxcd80D_VbQ/article-cover_image-shrink_720_1280/article-cover_image-shrink_720_1280/0/1714502450671?e=2147483647&v=beta&t=cyLjgSxaLupFRA8tHGhYAM6iFdmtWQTT3EjOAKK2MUg");
    background-size: cover;
    background-repeat: no-repeat;
    font-family: Arial;
    font-size: 13pt;
    line-height: 1.6;
}

h1 {
    font-size: 32pt;
    color: white;
}

h2 {
    font-size: 24pt;
    color: #34495e;
}

h3 {
    font-size: 18pt;
    color: #34495e;
}

section {
    background-color: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
}

article {
    margin: 15px 0;
}

.title {
    color: #5C6AC4;
}

.nav {
    display: inline-block;
    background-color: #0000CD;
    color: white;
    padding: 12px 20px;
    border-radius: 10px;
    text-decoration: none;
    margin: 5px;
}

.nav:hover {
    background-color: #0000FF;
}

footer {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

code {
    color: #3a3a3b;
}
.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Seitenverhältnis */
  height: 0;
  overflow: hidden;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}