#header #action_panel #logo a {
  background-image: url("/imagedata/images/nifty.d-dx.jp.logo.png") !important;
  background-color: initial;
}

@media screen and (min-width: 350px) {
  #header #action_panel #logo a {
    background-image: url("/imagedata/images/nifty.d-dx.jp.logo.png") !important;
    width: 113px;
    height: 18px;
  }
}

@media screen and (min-width: 800px) {
  #header #action_panel #logo a {
    background-image: url("/imagedata/images/nifty.d-dx.jp.logo.png") !important;
    width: 227px;
    height: 36px;
  }
}

@media screen and (min-width: 1280px) {
  #header #action_panel #logo a {
    background-image: url("/imagedata/images/nifty.d-dx.jp.logo.png") !important;
  }
}