.loader {
	border: 3px solid #f3f3f3;
    -webkit-animation: spin 1s linear infinite;
    animation: spin 1s linear infinite;
    border-top: 5px solid #555;
    border-radius: 50%;
    width: 25px;
    height: 25px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}