title: Encrypt CSS external link and restrict access to it
body: <p>I have a new client who asked me to make 2 websites and no payment so far! 
  I have the ftp accounts, but he can always close my access and leave me without pay. 
  Can I upload the CSS to another server of mine and encrypt the link to CSS file? 
  If yes, can I restrict peoples to see the file if they find the URL to CSS file?</p>
  
  <p>Thank you!</p>