body {
    margin: 0;
    padding: 0;
    background: #fafafa;
    font-family: Arial, sans-serif;
    text-align: center;
}
.wrapper {
    margin-top: 100px;
}
.loader {
    margin: 20px auto;
    border: 8px solid #ddd;
    border-top: 8px solid #555;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.msg {
    color: #333;
    font-size: 18px;