.page-top-button {
    position: fixed;
    bottom: 0;
    right: 0;
    z-index: 100;
    visibility: hidden;
    opacity: 0;
    transition: visibility ease 0.2s, opacity ease 0.2s;
}

.page-top-button.show {
    visibility: visible;
    opacity: 1;
}

.page-top-button.absolute {
    position: absolute;
}

.page-top-button svg {
    vertical-align: bottom;
}

.w_content_body {
    position: relative;
}