body {
    font-family: Arial;
    background-color: #1e1e1e;
}

.app-loader {
    width: 10em;
    height: 10em;
    line-height: 10em;
    font-size: 1.4em;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: rgb(133, 208, 246);
}

.app-loader::before {
    content: ' ';
    border: 16px solid rgba(60, 206, 67, 0.1);
    border-top: 16px solid rgb(133, 208, 246);
    border-bottom: 16px solid rgb(133, 208, 246);
    border-radius: 50%;
    animation: spin 10s linear infinite;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    box-sizing: border-box;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(1800deg);
    }
}