@media only screen and (max-width: 1000px){} @media only screen and (min-width: 480px) and (max-width: 768px){section。Parallax_section_holder{高度:auto !important;最小高度:400 px;}} @media only screen和(max-width: 480px){section。Parallax_section_holder{高度:auto !important;最小高度:400 px;}}