#loadingDiv {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 1;
    width: 150px;
    height: 150px;
    margin: -75px 0 0 -75px;
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid #26D07C;
    border-bottom: 16px solid #26D07C;
    border-left: 16px solid #000000;
    border-right: 16px solid #000000;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

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

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

body {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

#footer {
    width: 100%;
    overflow: hidden;
    flex-shrink: 0;
    margin-top: auto;
}