If you are using Responsive Web Design, use the meta name="viewport" tag to tell the browser how to adjust the content. If you use Dynamic Serving, use the Vary HTTP header to signal your changes depending on the user agent. If you are using separate URLs, signal the relationship between http://socongthuongdienbien.gov.vn/index.php?language=vi&nv=users&nvvithemever=t&nv_redirect=aHR0cHM6Ly9hbnRhbHlhZXNjb3J0a2l6LmNvbS8