@-webkit-keyframes fade-in { 
	0% {    opacity: 0; }  
	20%   , 50%,100% {    opacity: 1; }  
	30%, 75% {    opacity: 0; } 
}
@-moz-keyframes fade-in {  
	0% {    opacity: 0; }  
	20%   , 50%,100% {    opacity: 1; }  
	30%, 75% {    opacity: 0; } 
}