.loader-bg {
    position: fixed;
    z-index: 99999999;
    background: rgb(255, 255, 255);
    width: 100%;
    height: 100%;
}

.loader {
    border: 0 solid transparent;
    border-radius: 50%;
    width: 150px;
    height: 150px;
    position: absolute;
    top: calc(50vh - 75px);
    left: calc(50vw - 75px)
}

.loader:after,
.loader:before {
    content: '';
    border: 1em solid #06327d;
    border-radius: 50%;
    width: inherit;
    height: inherit;
    position: absolute;
    top: 0;
    left: 0;
    animation: loader 2s linear infinite;
    opacity: 0
}

.loader:before {
    animation-delay: .5s
}

@keyframes loader {
    0% {
        transform: scale(0);
        opacity: 0
    }

    50% {
        opacity: 1
    }

    100% {
        transform: scale(1);
        opacity: 0
    }
}