body {
    padding:0;
    margin:0;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

header {
    margin-top: 24px;
    margin-bottom: 24px;
}

.mitte {
    display:flex;
    justify-content: center;
    align-items: center;
}

#it-solution_img {
    width: 100%;
    height: 255px;
}
#it_solution_img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* wenn breite = 800 px, dann höhe = 600 px */
@media screen and (min-width: 800px) {
    #it_solution_img {
        height: 600px;
    }
}

nav {
    position: sticky;
    top: 0px;
    backdrop-filter: blur(6px);
}

footer ul, nav ul {
    list-style: none;
    margin: 0px;
    padding: 0px;
    padding-top: 24px;
    padding-bottom: 24px;
}

footer ul li a, nav ul li a {
    font-weight: 600;
    padding: 16px;
    margin-block-start: 0;
    margin-block-end: 0;
    padding-inline-start: 0;
}

section {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 16px;
    padding-right: 16px;
}