Hi Mari,

The scroll to top button is hidden by default in the theme (you can see it also on our theme demo.

If you want to display the button also on mobile devices you can copy/paste the following in to the custom CSS textarea of the theme customizer:

.scrollToTop {
    opacity: 0;
    visibility: hidden;
    position: fixed;
    display: block;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    line-height: 48px;
    font-size: 20px;
    text-align: center;
    color: #ffffff;
    background-color: rgba(0, 0, 0, 0.2);
}