.load-row {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    width: 100vw;
    position: fixed;
    top: 0;
    left: 0;
    background: #fff; 
    z-index: 999999;
}

.load-row span {
    display: inline-block;
    width: 2vw;
    height: 2vw;
    background: #1a4b8c;
    border-radius: 50%;
    animation: up-down6 0.5s ease-in infinite alternate;
}

.load-row span:nth-child(2) {
    background: #255da5;
    animation-delay: 0.16s;
}

.load-row span:nth-child(3) {
    background: #1a4b8c;
    animation-delay: 0.32s;
}

.load-row span:nth-child(4) {
    background: #2169c7;
    animation-delay: 0.48s;
}

@keyframes up-down6 {
    0% {
        transform: translateY(-2vh);
    }

    100% {
        transform: translateY(2vh);
    }
}