admin.toolbar_search.css in Admin Toolbar 3.x

#admin-toolbar-search-tab .js-form-item.form-item {
  margin-top: 0.3rem;
  margin-bottom: 0;
}

#admin-toolbar-search-input {
  min-height: 30px;
  height: 100%;
  padding: 0 0.4rem;
  line-height: 1.75rem;
  margin: 0;
  color: #3b3b3b;
  background: #fcfcfa;
  border: 1px solid #ccc;
  border-radius: unset;
  font-size: 1em;
}

.ui-autocomplete .ui-menu-item span.admin-toolbar-search-url {
  display: none;
}

.admin-toolbar-search-autocomplete-list {
  max-height: 300px;
  overflow-y: scroll;
}

.admin-toolbar-search-autocomplete-list .ui-menu-item .ui-state-active {
  margin: 0;
}

#toolbar-item-administration-search-tray label {
  display: inline-block;
  color: #000000;
  margin-right: .5em;
  font-weight: bold;
}

#toolbar-item-administration-search-tray div.form-item {
  margin: 0.75em 0;
}

#toolbar-item-administration-search-tray input {
  display: inline-block;
  padding: 0.3em 0.4em 0.3em 0.5em;
  font-size: 1em;
}

#admin-toolbar-search-tab .toolbar-item:before {
  background-image: url('../../misc/icons/bebebe/loupe.svg');
}

#admin-toolbar-search-tab .toolbar-item:active:before,
#admin-toolbar-search-tab .toolbar-item.is-active:before {
  background-image: url('../../misc/icons/ffffff/loupe.svg');
}
#toolbar-item-administration-search-tray div.form-item.js-form-type-textfield {
  margin: 0.75em 0;
}