body {
    margin: 0;
    padding: 0;
}

._df_book {
    color: #444;
    font-family: FiraSans-Regular, sans-serif;
    outline: 0;
    background-image: url(../assets/bg.png);
    height: auto;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

._df_book-bg-dark {
	background-image: none;
	background: #000;
}

@media (max-width: 991.88px) {
    ._df_book-bg-dark {
        background: #f0f0f0;
    }
}

.df-ui-btn.df-active, .df-ui-btn:hover {
    color: #008c8c;
}

._df_book-hide-controlls .df-ui {
    display: none;
}