.full-width-block {
  --viewportWidth: calc(100vw - var(--scrollbarWidth));

  width: var(--viewportWidth);
  position: relative;
  left: calc(-1 * (var(--viewportWidth) - 100%) / 2);
}

.editor-styles-wrapper .full-width-block {
  --inspectorWidth: 280px;
  --viewportWidth: calc(100vw - var(--scrollbarWidth) - var(--inspectorWidth));
}

.editor-styles-wrapper .full-width-block > .wp-block {
  max-width: var(--maxWidth, 100%);
}