.loader-backdrop {
    position: fixed;
    width: 100dvw;
    height: 100dvh;
    top: 0;
    left: 0;
    margin: 0;
    padding: 0;
    background: #303030;
    overflow: hidden;
    z-index: 99;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader {
    width: 48px;
    height: 48px;
    display: inline-block;
    position: relative;
}

.loader::after,
.loader::before {
    content: '';
    box-sizing: border-box;
    width: 48px;
    height: 48px;
    border: 2px solid #FFF;
    position: absolute;
    left: 0;
    top: 0;
    animation: rotationBreak 3s ease-in-out infinite alternate;
}

.loader::after {
    border-color: orange;
    animation-direction: alternate-reverse;
}

@keyframes rotationBreak {
    0% {
        transform: rotate(0);
    }

    25% {
        transform: rotate(90deg);
    }

    50% {
        transform: rotate(180deg);
    }

    75% {
        transform: rotate(270deg);
    }

    100% {
        transform: rotate(360deg);
    }
}