header h1 {
    margin: 5px;
    font-size: 50px;
    text-align: left;
}
h3 {
    text-align: center;
    font-size: 25px;
    margin: 0;
    padding: 15px;
}
h2 {
    font-size: 22px;
    text-align: center;
}
header {
    background: #FFFFFF;
    text-align: center;
    font-size: 30px;
    padding: 15px;
}
body {
    background: #FFFFFF;
    margin: 15px auto;
    width: 1000px;
}
ul {
    font-size: 20px;
}
img {
    width: 100%;
    text-align: center;
}
.bild2 {
    height: 10%;
    padding: 10px auto;
}
a {
    text-align: center;
}
nav {
    text-align: center;
    margin: 15px auto;
}
nav a {
    display: inline-block;
    text-decoration: none;
    color: #FFFFFF;
    background: #5495DF;
    padding: 5px 10px;
}
nav a.active {
    background: #0D2949;
}
nav a:hover {
    background: #0D2949;
}
main {
    background: #FFFFFF;
    padding 20px;
    text-align: center;
}
p, b {
    text-align: center;
    font-size: 20px;
}
footer {
    text-align: left;
    padding: 20px;
}