@media only screen and (min-width: 480px) and (max-width: 768px)
{
    section.parallax_section_holder
    {
        height: auto!important;
        min-height: 400px;
    }
}
@media only screen and (max-width: 480px)
{
    section.parallax_section_holder
    {
        height: auto!important;
        min-height: 400px;
    }
}