#preloader-1 {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #808080;
    z-index: 9999999999;
}

.preloader-1 {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    margin: auto;
    border: 8px solid #f3f3f3;
    border-radius: 50%;
    border-top: 8px solid #007bff;
    width: 70px;
    height: 70px;
    -webkit-animation: spin 1.5s ease infinite;
    animation: spin 1.5s ease infinite;
}

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

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

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

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