2 Column [col2] not work in mobile

Se upload files.
they go together and stay out of it at the height fields ...

Solves!

@media (max-width: 767px){
.one_half, .one_third, .two_third, .three_fourth, .one_fourth{
width:100%;
}
}

@media (max-width: 991px) and (min-width: 768px){
.one_half, .one_third, .two_third, .three_fourth, .one_fourth{
width:100%;
}
}