/* mainstages slide-right */
@keyframes anim-slide-right {
    0% {
        opacity: 0;
        transform: translate(-48px)
    }

    to {
        opacity: 1;
        transform: translate(0)
    }
}

section [class*="mn_"] {
    animation: anim-slide-right 0.5s ease-out both;
    animation-timeline: view();
    animation-range: entry 25% entry 60%;

    /* Animation properties create a new stacking context; this z-index
       keeps descendants from falling behind siblings with z-index: 0. */
    position: relative;
    z-index: 1;
}