mask with htaccess that files are loaded from another domain

[robkof]

Its possible to mask with htaccess that all files are loaded from another domain?
On www.domain1.com are files like: index.php, css.css, logo.png.
If someone open www.domain2.com, that htaccess redirect and open data from www.domain1.com, but address in browser address bar its still www.domain2.com.
Thanks and sorry for my english