message: Remove backdrop-filter from pf-c-backdrop to fix Chrome bug
diff: .co-about-modal__alert {
  margin-bottom: var(--pf-global--spacer--xl);
  }
  +
  +// Temp fix until https://github.com/patternfly/patternfly-next/issues/2447 is fixed upstream
  +.pf-c-backdrop {
  + backdrop-filter: none !important;
  + -webkit-backdrop-filter: none !important; // so Safari is consistent with Chrome
  +}
  