.brxe-ba-back-to-top.brx-draggable.is-empty {
    min-width: initial;
    min-height: initial;
}

.ba-back-to-top-show-on-scroll {
    opacity: 0;
    -webkit-transition: opacity 1s;
    -o-transition: opacity 1s;
    transition: opacity 1s;
}

.ba-back-to-top-show-on-scroll.ba-back-to-top-visible {
    opacity: 1;
    -webkit-transition: opacity 1s;
    -o-transition: opacity 1s;
    transition: opacity 1s;
}