chromium/chrome/browser/resources/chromeos/gaia_action_buttons/gaia_action_buttons.html

<style>
  .secondary-button {
    margin-inline-end: 20px;
  }

  .rounded-button {
    border-radius: 20px;
  }
</style>

<cr-button
    id="secondary-button"
    class$="[[secondaryButtonClasses_]]"
    on-click="onSecondaryActionButtonClicked_"
    aria-label$="[[data_.secondaryActionButtonLabel]]"
    hidden="[[!data_.secondaryActionButtonLabel]]"
    disabled="[[!data_.secondaryActionButtonEnabled]]">
    [[data_.secondaryActionButtonLabel]]
</cr-button>
<cr-button
    id="primary-button"
    class$="[[actionButtonClasses_]]"
    on-click="onPrimaryActionButtonClicked_"
    aria-label$="[[data_.primaryActionButtonLabel]]"
    hidden="[[!data_.primaryActionButtonLabel]]"
    disabled="[[!data_.primaryActionButtonEnabled]]">
  [[data_.primaryActionButtonLabel]]
</cr-button>