@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("askubuntu.com") {
    .askquestion { margin-top: 15px !important; }
    #header { height: 100px !important; }

    /* optional - hides system message header */
    #system-message { display: none; }

    /* optional - smaller question boxes */
    .question-hyperlink { font-size: 13px !important; }
    .question-summary { padding: 5px 0 0 !important; }
    h3 { margin-bottom: 0 !important }
}