Function _styleForStep

shepherd.js/src/components/shepherd-modal.ts:203–230

(step: Step)

  }

  function _styleForStep(step: Step) {
    const {
      modalOverlayOpeningPadding,
      modalOverlayOpeningRadius,
      modalOverlayOpeningXOffset = 0,
      modalOverlayOpeningYOffset = 0
    } = step.options;

    const iframeOffset = _getIframeOffset(step.target);
    const scrollParent = _getScrollParent(step.target);

    const rafLoop = () => {
      rafId = undefined;
      positionModal(
        modalOverlayOpeningPadding,
        modalOverlayOpeningRadius,
        modalOverlayOpeningXOffset + iframeOffset.left,
        modalOverlayOpeningYOffset + iframeOffset.top,
        scrollParent,
        step.target,
        step._resolvedExtraHighlightElements
      );
      rafId = requestAnimationFrame(rafLoop);
    };

    rafLoop();
    _addStepEventListeners();
  }

  function _getScrollParent(el?: HTMLElement | null): HTMLElement | null {
    if (!el) return null;