border-bottom: 1px solid #d9d9d9; border-top: 1px solid #d9d9d9; Pay attetion to UPPER and LOWER cases
margin: 10px 0; list-style: disc; font-size: 24px;

This can be due to:

Page not found (error 404)

#container { color: #555; margin: auto;
  • The page no longer exists.
  • Error 404 :( margin: 0; font-size: 14px; } color: #555; } color: #4C5CBD; font-size: 12px; http://site.altervista.org/Page.html is different from http://site.altervista.org/page.html
    } text-decoration: none; color: #F7931E; } body { a { font-weight: normal;
  • The page has been moved.
  • ul { }