.spinner {
    position: fixed;
    left: 40%;
    top: 40%;
    height: 60px;
    width: 60px;
    margin: 0 auto;
    -webkit-animation: rotation 18s infinite linear;
    -moz-animation: rotation 1s infinite linear;
    -o-animation: rotation 1s infinite linear;
    animation: rotation 1s infinite linear;
    border-left: 6px solid #9fce1c;
    border-right: 6px solid #9fce1c;
    border-bottom: 6px solid #9fce1c;
    border-top: 6px solid rgba(38, 54, 81, .8);
    border-radius: 100%;
    z-index: 100;
}

.spinner-overlay {
    background: #efefef;
    opacity: 90%;
    z-index: 1001;
    pointer-events: none;
}

@-webkit-keyframes rotation {
    from {
        -webkit-transform: rotate(0deg);
    }
    to {
        -webkit-transform: rotate(359deg);
    }
}

@-moz-keyframes rotation {
    from {
        -moz-transform: rotate(0deg);
    }
    to {
        -moz-transform: rotate(359deg);
    }
}

@-o-keyframes rotation {
    from {
        -o-transform: rotate(0deg);
    }
    to {
        -o-transform: rotate(359deg);
    }
}

@keyframes rotation {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(359deg);
    }
}