style.css

h1, h2, h3, h4 {
    font-weight: 600 !important;
}

#navigation-items div ul li {
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
}

span > img {
    /*padding: 0.5rem;*/
}

footer > div {
    padding: 3rem 2rem !important;
}

#carbonads {
    display: flex;
    max-width: 130px;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 0 1px hsla(0, 0%, 0%, 0.15);
    font-size: 12px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI',
    Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue',
    Helvetica, Arial, sans-serif;
    position: fixed;
    bottom: 2rem;
    right: 2rem;
}

#carbonads a {
    background-image: none;
    color: #111;
    text-decoration: none;
}

#carbonads a:hover {
    color: #111;
}

#carbonads .carbon-img {
    display: block;
    max-width: 130px;
    line-height: 1;
}

#carbonads .carbon-img img {
    display: block;
    width: 130px;
    height: 100px;
    margin: 0 auto;
}

#carbonads .carbon-text {
    display: block;
    padding: 8px 10px;
    background-color: hsl(0, 0%, 98%);
    line-height: 1.35;
    text-align: left;
}

#carbonads .carbon-poweredby {
    display: block;
    padding: 10px;
    background: repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 5px,
            hsla(0, 0%, 0%, 0.025) 5px,
            hsla(0, 0%, 0%, 0.025) 10px
    )
    hsla(203, 11%, 95%, 0.4);
    background-color: hsl(0, 0%, 98%);
    font-weight: 600;
    font-size: 8px;
    line-height: 0;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

@media only screen and (min-width: 320px) and (max-width: 759px) {
    #carbonads {
        position: relative;
        max-width: 330px;
        margin: 20px 0;
        float: none;
    }

    #carbonads .carbon-wrap {
        display: flex;
        flex-direction: row;
    }

    #carbonads .carbon-img {
        margin: 0;
    }

    #carbonads .carbon-text {
        padding: 10px 10px 0 10px;

        font-size: 12px;
    }

    #carbonads .carbon-poweredby {
        position: absolute;
        right: 0;
        bottom: 0;
        border-radius: 0;
        border-top-left-radius: 3px;
        text-align: center;
    }
}