@-moz-document url-prefix('https://mail.google.com'), url-prefix('http://mail.google.com/mail/') {

/* Hides bar with gmail logo */
div.nH.w-asV .no {
  visibility: hidden!important;
  height: 0px !important;
}

/* Moves searching field */
table.cf.w-asX {
  visibility: visible !important;
  position: absolute !important;
  right: 250px !important;
}

/* Adjusts size of the search field */
input.w-as1.nr {
  width: 190px !important;
}

/* Smaller buttons */
.T-I {
  min-width: 30px !important;
}
}