body {
    font-family: Arial, sans-serif;
}
header {
    position: sticky;
    top: 0;
    z-index: 1000;
}
ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: space-evenly;
     align-items: center;
    background-color: rgba(191, 239, 245, 0.95);
    box-shadow: 0 2px 10px rgba(17, 0, 255, 0.2);
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 1000;
}

ul li a {
    display: block;
    padding: 16px 22px;
    font-size: 20px;
    color: rgb(7, 68, 122);
    text-decoration: none;
    font-weight: bold;
}

ul li a:hover {
    background-color: rgba(147, 197, 219, 0.8);
     text-decoration: none;
}
#bild {
    height: 60px;
    width: 110px;
    border-radius: 15px;
    border: 0px;
}

@media (max-width: 768px) {
    ul {
        flex-direction: column;
        text-align: center;
    }

    ul li a {
        width: 100%;
        border-top: 1px solid rgba(0,0,0,0.1);
    }
}