body {
    background-color: #dddddd;
    font-family: arial;
    height: 100vh;
    width: 100%;
    margin: 0;
}

#logo {
    display: block;
    margin-left: auto;
    margin-right: auto;
    height: 100%;
    padding-top: 5%;
    z-index: -1;
}

.logo-container {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 40%;
    z-index: -1;
}

.spacer {
    display: block;
    content: "";
    height: 65%;
}

.center {
    margin: auto;
    width: 100%;
    text-align: center;
}

#scroll-top {
    display: block;
    height: 20%;
    text-align: center;
    position: relative;
}

.contact {
    position: absolute;
    bottom: 0px;
    width: 100%;
    text-align: center;
    font-size: 19px;
}

#scroll-bottom {
    background-color: rgba(255, 255, 255, 0.80);
    z-index: 1;
    text-align: justify;
}

.impressum {
    max-width: 500px;
    margin: 0 auto;
    padding: 0 5%;
}

.hidden {
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.2s, opacity 0.2s linear;
}

.visible {
    visibility: visible;
    opacity: 1;
    transition: opacity 0.2s linear;
}

a:link {
    color: #333333;
}

/* visited link */
a:visited {
    color: #333333;
}

/* mouse over link */
a:hover {
    color: #333333;
}

/* selected link */
a:active {
    color: #333333;
}