Forum themes CSS/Bootstrap bug

  • There some issues with forum styles on my Linux machine (Windows seems to be ok). Default (toxic light theme) works fine, any other causes layout problems (see screenshot).

    Browsers details:

    4.4.0-112-generic #135-Ubuntu x86-64
    Google Chrome Version 64.0.3282.140 (Official Build) (64-bit)
    Firefox 58.0.1 (64-bit)


    Questionable style lines inside bootstrap.min.css:

    .navbar-nav {
      display: -webkit-box;
      display: -ms-flexbox;
      display: flex;
      -webkit-box-orient: vertical;
      -webkit-box-direction: normal;
      -ms-flex-direction: column;
      flex-direction: column; /* <= this one */
      padding-left: 0;
      margin-bottom: 0;
      list-style: none;
    body {
        margin: 0;
        font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        font-size: 0.875rem; /* <= font becomes unexpectedly small */

    I have no idea how these styles been generated, but seems like there are some problems here.

    UPD: cache cleaning doesn't help, as well as even browser changing.

  • I have it as well, only the default/paper works...
    And I have a Windows machine / chrome