general_style.css

@import url('https://fonts.googleapis.com/css?family=Playfair+Display');

html {
    font-size: 10px;
}

body {
    margin: 0;
    padding: 0;
    background-color: #636363;
    font-size: 1em;
}

main {
    color: white;
    font-size: 2em;
    margin-top: 1em;
}

header a{
    display: block;
    background-color: #FF0080;
    padding: 0.5em 0.8em 0.5em 0.8em;
    text-align: center;
    color: white;
    text-decoration: none;
    text-transform: uppercase;
    font-family: 'PlayFair Display',serif;
    letter-spacing: 0.6em;
    word-spacing: 1em;
    font-size: 2em;
}

nav ul {
    width: 100%;
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

    nav ul li {
        float: left;
        font-family: 'PlayFair Display',serif;
        font-size: 1.5em;
        letter-spacing: 0.08em;
    }

        nav ul li a {
            display: inline-block;
            color: white;
            text-align: center;
            padding: 14px 16px;
            text-decoration: none;
        }

            /* Change the link color to #111 (black) on hover */
            nav ul li a:hover {
                background-color: #ff5bad;
            }

.active {
    background-color: #FF0080;
}

em {
    font-style: italic;
}

.warnings {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.4rem;
    font-size: 1.7rem;
    background-color: #999999;
    text-align: center;
}

.button {
    background: linear-gradient(to bottom right, #FF0080 0%, #FF5BAD 100%);
    border: none;
    color: white;
    padding: 0.75em;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    border-radius: 25px;
    font-size: 1.6em;
    cursor: pointer;
    position: fixed;
    bottom: 2em;
    left: 1.3em;
    width: 20px;
    opacity: 0.9;
    margin-bottom: 0.5em;
    margin-left: 0.5em;
}

@media all and (max-width: 580px) {
    nav ul li {
        width: 100%;
    }

        nav ul li a {
            display: block;
        }
}

@media all and (max-width: 450px) {
    header a {
        font-size: 4vw;
    }
}