/* loader */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loader {
    position: relative;
    margin: auto;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border-top: 2px solid rgba(255, 255, 255, 1);
    border-left: 2px solid rgba(255, 255, 255, 1);
    border-right: 2px solid rgba(255, 255, 255, 0);
    animation: spin 0.575s infinite linear;
}