:root { --animation-mainstage-id: 'zoom-out'; }

/* mainstages zoom-out */
@keyframes anim-zoom-out {
    0% {
        opacity: 0;
        transform: scale(1.25)
    }

    to {
        opacity: 1;
        transform: scale(1)
    }
}

.mstg [class*="mn_"] {
    animation: anim-zoom-out 0.3s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}