StackExchange portrait mode by Vivelin

/* ==UserStyle==
@name           StackExchange portrait mode
@namespace      vivelin.net
@version        1.0.0
@description    Moves the sidebar down on narrow screens on StackOverflow and other StackExchange sites
@author         Vivelin
==/UserStyle== */
@-moz-document domain("stackexchange.com"), domain("stackoverflow.com"), domain("superuser.com"), domain("serverfault.com"), domain("mathoverflow.net"), domain("stackapps.com"), domain("askubuntu.com") {
  @media (max-width: 1200px) {
    #sidebar, .sidebar {
      float: none;
      clear: both;
      width: auto;
      margin-left: 0;
      margin-top: 4rem;
    }

    #mainbar,
    .mainbar {
      float: none;
      width: 100%;
    }
  }
}