.Animacao_Ondulacao
{
    float: right;
    margin-right: 80px;
    animation: UpDown 1s linear infinite;
}

@keyframes UpDown {
    0%
    {
       margin-top: 15px;
       margin-bottom: 0px;
    }
    50%
    {
        margin-top: 0px;
        margin-bottom: 15px;
    }
    100%
    {
        margin-top: 15px;
        margin-bottom: 0px;
    
    }
}