style.css

@font-face {
    font-family: "FredokaOne";
    src: url(https://milchbarbaden.github.io/links/fonts/FredokaOne-Regular.ttf) format("truetype");
}

@font-face {
    font-family: "FamiljenGrotesk";
    src: url(https://milchbarbaden.github.io/links/fonts/FamiljenGrotesk-Regular.ttf) format("truetype");
}

a {
    color: #60439a;
}

a:hover,
a:focus {
    color: #fdbc48;
}

/* Title */

body {
    background-color: #6ac071;
}

.page-header {
    background-color: #60439a;
    padding: 5px 6rem;
    text-align: center;
}

.page-title {
    color: #6ac071;
    font-family: "FredokaOne", sans-serif;
    font-size: 4.8rem;
    margin: 2rem 0;
}

.page-tagline {
    color: #fdbc48;
    font-family: "FamiljenGrotesk", sans-serif;
    font-size: 4.2rem;
    margin: 2rem 0;
}

@media (max-width: 800px) {
    .page-header {
        padding: 1rem 2rem;
    }

    .page-title {
        font-size: 2.25rem;
    }

    .page-tagline {
        font-size: 2rem;
    }
}

/* Links */

#content {
    width: 425px;
    margin: 2rem auto;
}

.content-link {
    display: block;
    padding: 1rem 2rem;
    margin: 1rem 0;
    width: calc(425px - 4rem);

    font-size: 1.8rem;
    font-family: "FamiljenGrotesk", sans-serif;
    text-decoration: none;

    color: #6ac071;
    background-color: #60439a;

    transition: 0.25s;
}

.content-link img {
    width: 1.8rem;
    height: 1.8rem;
    margin-right: 1rem;
    vertical-align: bottom;

    filter: invert(61%) sepia(67%) saturate(298%) hue-rotate(75deg) brightness(97%) contrast(88%);
    transition: 0.25s;
}

.content-link:hover,
.content-link:focus {
    color: #60439a;
    background-color: #fdbc48;
    transform: translateY(-0.1em) translateX(0.1em);
}

.content-link:hover img,
.content-link:focus img {
    filter: invert(29%) sepia(18%) saturate(3015%) hue-rotate(226deg) brightness(90%) contrast(87%);
    /* filter: invert(94%) sepia(14%) saturate(4164%) hue-rotate(321deg) brightness(102%) contrast(102%); */
}

#content-map {
    width: 425px;
    margin: 0 auto;
}

@media (max-width: 800px) {
    #content {
        width: 100%;
        margin: 0;
        padding: 0 1rem;
    }

    .content-link {
        width: calc(100% - 6rem);
        font-size: 1.2rem;
    }

    .content-link img {
        width: 1.2rem;
        height: 1.2rem;
    }

    #content-map {
        width: 100%;
        margin: 0;
    }

    #content-map iframe {
        width: calc(100% - 2rem);
    }
}