@charset "utf-8";
/* CSS Document */

/* go to top */
.back-to-top {
    position: fixed;
    bottom: 10%;
    right: 15%;
    display:none;
}
@media
only screen 
    and (max-width: 500px), (min-device-width: 768px) 
    and (max-device-width: 1024px)  {
   .back-to-top {
    position: fixed;
    bottom: 20px;
    right: 10px;
    display:none;
}