.spinner-loader-container {
    position: relative;
    display: inline-block;
}

.spinner-loader {
    border: 4px solid rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    border-top: 4px solid #3498db;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -12px;
    margin-left: -12px;
    display: none;
}

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

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