.foto .tn-atom{
    border-top-left-radius: 20px;
    border-bottom-left-radius: 20px;
}

@media screen and (max-width: 640px) {
.foto .tn-atom{
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    border-bottom-left-radius: 0px;
}

}