.fadeOut {
    animation: fadeOut 1s forwards;
    -webkit-animation: fadeOut 1s forwards;
    -moz-animation: fadeOut 1s forwards;
    -o-animation: fadeOut 1s forwards;
    -ms-animation: fadeOut 1s forwards;
}

@keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

@-moz-keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

@-webkit-keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

@-o-keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

@-ms-keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}