text: let scrollBarWidth;
  
  export function getScrollBarWidth() {
    if (scrollBarWidth !== undefined) return scrollBarWidth;
  
    const outer = document.createElement('div');
    outer.className = 'fishd-scrollbar__wrap';
    outer.style.visibility = 'hidden';
    outer.style.width = '100px';
    outer.style.position = 'absolute';
    outer.style.top = '-9999px';
    document.body.appendChild(outer);
  
    const widthNoScroll = outer.offsetWidth;
    outer.style.overflow = 'scroll';
  
    const inner = document.createElement('div');
    inner.style.width = '100%';
    outer.appendChild(inner);
  
    const widthWithScroll = inner.offsetWidth;
    scrollBarWidth = widthNoScroll - widthWithScroll;
    outer.parentNode.removeChild(outer);
  
    return scrollBarWidth;
  }
  