.fadein{
    animation-name:fadein;
    
    animation-duration: 3s;
}
.fadeout{
    animation-name:fadeout;
    animation-duration: 2s;
}
@keyframes fadein {
    from {
	display:none;
	opacity:0%;
    }
    to {
	opacity:100%;
    }
}
@keyframes fadeout {
    from {opacity:100%;}
    to {
	opacity:0%;
	
       }
}

.hidden{
    display:none;
}