.loader {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 1;
    width: 48px;
    height: 48px;
    margin: -19px 0 0 -19px;
    border: 5px solid #6E7DAB;
    border-bottom-color: transparent;
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    -webkit-animation: spin 1s linear infinite;
    animation: spin 1s linear infinite;
}

@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
    }

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

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

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