/* Trix heading buttons in toolbar */
trix-toolbar .trix-button[data-trix-attribute="heading1"],
trix-toolbar .trix-button[data-trix-attribute="heading2"],
trix-toolbar .trix-button[data-trix-attribute="heading3"] {
  font-weight: 700;
  font-size: 0.75em;
  padding: 0 0.5em;
  min-width: 1.8em;
  text-align: center;
}