.t943__btn_fixed { z-index: 1000; position: fixed !important; bottom: 15px; left: 80px; right: 80px; visibility: visible; opacity: 1; transform: scale(1) translateY(0); transition: transform 0.25s ease-in, opacity 0.25s ease-in, visibility 0.25s ease-in; }

.t943__btn_hidden {
    visibility: hidden;
    opacity: 0;
    -webkit-transform: scale(.9) translateY(25px);
    -ms-transform: scale(.9) translateY(25px);
    transform: scale(.9) translateY(25px);
    -webkit-transition: transform 0.25s ease-out, opacity 0.25s ease-out, visibility 0.25s ease-out;
    -o-transition: transform 0.25s ease-out, opacity 0.25s ease-out, visibility 0.25s ease-out;
    transition: transform 0.25s ease-out, opacity 0.25s ease-out, visibility 0.25s ease-out;
}