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

@-moz-document domain("www.nicovideo.jp") {
  #PAGEHEADER > .bg_headmenu:first-child > .headmenu_width:first-child > .headmenu:first-child,
  #PAGEHEADER > .bg_headmenu:first-child > .headmenu_width:first-child > .headmenu:first-child + .headmenu > tbody > tr:only-child > td:first-child > a[href="#"]:first-child + a,
  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td:first-child,
  #web_pc_uneune,
  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td:first-child + td > a > img,
  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td[width="100%"] + td:last-child {
    display : none !important;
  }

  #cookie_container {
    clear : both !important;
  }

  #PAGEHEADER + * {
    padding-top : 5px !important;
  }

  #PAGEHEADER > .bg_headmenu:first-child > .headmenu_width:first-child {
    max-width : none !important;
    width : 984px !important;
  }

  #PAGEHEADER > .bg_headmenu:first-child > .headmenu_width:first-child > .headmenu:first-child + .headmenu > tbody > tr:only-child > td:first-child {
    font-size : 0 !important;
  }

  #PAGEHEADER > .bg_headmenu:first-child > .headmenu_width:first-child > .headmenu:first-child + .headmenu > tbody > tr:only-child > td:first-child > * {
    font-size : 12px !important;
  }

  #PAGEHEADER > .bg_headmenu:first-child > .headmenu_width:first-child > .headmenu:first-child + .headmenu > tbody > tr:only-child > td:first-child > a[href="https://secure.nicovideo.jp/secure/login_form"] {
    margin-left : 8px !important;
  }

  #PAGEHEADER > .body_984 > table:first-child {
    width : auto !important;
    top : 0 !important;
    z-index : 10000 !important;
    white-space : nowrap !important;
  }

  .mode_1 #PAGEHEADER > .body_984 > table:first-child {
    position : absolute !important;
  }

  .mode_2 #PAGEHEADER > .body_984 > table:first-child {
    position : fixed !important;
  }

  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td {
    padding : 2px 4px 1px 4px !important;
  }

  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td:first-child + td > a:before {
    content : "ニコニコ動画";
    font-size : 12px !important;
    line-height : 25px !important;
  }

  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td:first-child + td > a {
    color : #ccc !important;
  }

  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td:first-child + td > a:hover {
    color : #fff !important;
  }

  #PAGEHEADER > .body_984 > table:first-child > tbody > tr:only-child > td[width="100%"] {
    width : auto !important;
  }

  #head_search_form {
    position : relative !important;
    height : 25px !important;
    width : 399px !important;
  }

  a.search_sw_0,
  a.search_sw_1 {
    float : right !important;
    margin : 3px 0 0 2px !important;
  }

  a.search_sw_0 img,
  a.search_sw_1 img {
    height : 19px !important;
    margin : 0 !important;
  }

  a.search_sw_0 img {
    background-image : url("data:image/png;base64,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") !important;
  }

  a.search_sw_1 img {
    background-image : url("data:image/png;base64,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") !important;
  }

  #head_search_form > table {
    float : left !important;
  }

  #head_search_form > table > tbody > tr:only-child > td:last-child {
    display : none !important;
  }
}