#loader-container {
    width: 200px;
    height: 200px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    overflow: hidden;
}

.loader-div {
    width: calc(100% - 16px);
    height: calc(100% - 16px);
    border: 8px solid #162534;
    border-top: 8px solid #0099ff;
    border-radius: 50%;
    animation: rotate 4s linear infinite;
}

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