.class1{animation: glow 495ms ease-out infinite alternate; }



@keyframes glow {
    0% {
        box-shadow:0 0 2px 1px rgba(255, 0, 0,.1),inset 0 0 2px 1px rgba(255, 0, 0,.1);
    }
    100% {
        box-shadow:0 0 6px 1px rgba(255, 0, 0,.8),inset 0 0 6px 1px rgba(255, 0, 0,.8);
    }
}

	/*box-shadow:0 0 8px 1px rgba(255, 0, 0,.8),inset 0 0 8px 1px rgba(255, 0, 0,.8);*/