ctdo.de/web/styles/main.css

:root {
    --background-color: #193360;
    --nav-background-color: #14284c;
    --logo-background-color: #0e1e38;

}

html, body {
    padding: 0;
    margin: 0;
    background-color: var(--background-color);
    color: white;
    font-family: sans-serif;
    line-height: 150%;
}

a {
    color: #22bb22 !important;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

a:visited {
    color: #bb66ff !important;
}

header {
    background-color: var(--logo-background-color);
}

nav {
    background-color: var(--nav-background-color);
}

nav li a {
    color: white !important;
    text-decoration: none;
}

nav li a.active {
    text-decoration: underline;
    text-decoration-style: double;
}

nav li a:visited {
    color: white !important;
}

.red-text {
    color: #DD0000 !important;
}

.green-text {
    color: #00DD00 !important;
}

header {
    text-align: center;
    padding: 10px 0 0 0;
}

header img {
    max-width: 200px;
    max-height: 200px;
    width: 90vw;
    margin-bottom: 10px;
}

nav {
    padding: 10px 0 10px 0;
}

nav ul {
    list-style: none;
    text-align: center;
}

nav ul li {
    display: inline-block;
    padding: 0 2vw 0 2vw;
    font-size: 125%;
}

main {
    max-width: 950px;
    min-height: 100vh;
    height: auto;
    width: 90%;
    margin: auto;
    padding: 10px 0 0 0;
}

footer {
    background-color: var(--nav-background-color);
    height: 100px;
}

iframe.osm {
    width: 500px;
    height: 500px;
    max-width: 90vw;
    max-height: 90vw;
    margin: auto;
    display: block;
}

@media only screen and (max-width: 885px) {
    nav ul li {
        display: block;
        font-size: 200%;
        padding: 20px 0 20px 0;
    }
}