.loader_wrapper {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;

    background-color: #000;

    opacity: 0.3;

    transition: opacity 0.2s ease-out;
}

.loader {
    position: absolute;
    top: 50%;
    left: 50%;

    width: 96px;
    height: 96px;

    margin-top: -48px;
    margin-left: -48px;
}

.loader::after,
.loader::before {
    content: '';
    box-sizing: border-box;
    width: 96px;
    height: 96px;
    border: 2px solid #FFF;
    position: absolute;
    left: 0;
    top: 0;
    animation: rotationBreak 3s ease-in-out infinite alternate;
}

.loader::after {
    border-color: #FF3D00;
    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);
    }
}

body.loaded .loader_wrapper,
body.loaded .loader {
    display: none;
}