.animation-translation{
    animation:move 500ms infinite;
    -moz-animation:move 500ms infinite; /* Firefox */
    -webkit-animation:move 500ms infinite; /* Safari and Chrome */
    -o-animation:move 500ms infinite;/* Opera */
}

@keyframes move
{
    from {top:0;}
    to {top:-50px;}
}

@-moz-keyframes move /* Firefox */
{
    from {top:0;}
    to {top:-50px;}
}

@-webkit-keyframes move /* Safari and Chrome */
{
    from {top:0;}
    to {top:-50px;}
}

@-o-keyframes move /* Opera */
{
    from {top:0;}
    to {top:-50px;}
}