body {
    background-attachment: fixed;
    background-image: url('/v2/img/static_page/promotion/novelist/pc_bg.png');
    background-position: center;
    background-size: cover;
}

.content {
    max-width: 500px;
    margin: 0 auto;
    box-shadow: 0 0 30px 0 rgba(0, 0, 0, 0.5);
}

@media screen and (min-width: 1180px) {

    .floating-content__button {
        width: 100%;
        height: 50px;
        font-size: 25px;
    }

    .floating-content {
        top: 80px;
        left: calc(50vw + 290px);
        flex-direction: column;
        justify-content: space-between;
        width: 300px;
        height: 250px;
        padding: 30px;
        border-top: none;
        border-radius: 35px;
        background: rgba(255, 255, 255, 0.8);
        box-shadow: 0 10px 20px 0 rgba(0, 0, 0, 0.16);
        font-size: 20px;
    }

    .footer {
        padding-bottom: 32px;
    }
}