.wh_header_flex_container .wh_search_input {
  padding: 0;
  background: none;
}

#searchForm > div {
  width: 100%;
}

.wh_top_menu_and_indexterms_link {
    flex-grow: .9;
}

.wh_search_textfield {
    height: 2em;
}

.wh_search_button {
    height: 2em;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
}