.overlay{
	display: none;
    position: fixed;
    width: 100%;
    height: 100%;
    background: #333;
    top: 0;
}
.preloader{
	display: none;
    width: 50px;
    height: 50px;
    border: 6px solid transparent;
    border-bottom: 6px solid #fc0 ;
    border-left: 6px solid #fc0 ;
    border-radius: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: animate 1s infinite linear;
}
/* Анимируем наш прелоадер */
@keyframes animate{
	0%{
		transform: rotate(0);
	}
	100%{
		transform: rotate(360deg);
	}
}