a#scroll-to-top {

    /* Background image, replace in images folder */
    background: url(../images/arrow.png) no-repeat center center;

    /* Match to background image size */
    width: 78px;
    height: 79px;

    /* Postion on the page */
    position: fixed;
    right: 30px;
    bottom: 30px;

    /* Hide link text */
    text-indent: -9999px;
    font-size: 0;

    /* Other */
    cursor: pointer;
    outline: 0;

}

body.rtl a#scroll-to-top {
    left: 30px;
}

/* Responsive Design Support */
@media only screen and (max-width: 480px) {

    a#scroll-to-top {

        /* Changing Position */
        right: 0;
        bottom: 0;
    }

    body.rtl a#scroll-to-top {
        left: 0;
        bottom: 0;
    }
}