获取最后一个可见div的CSS选择器

function getLastVisibleDivSelector() {
  var divs = document.querySelectorAll('div');
  var lastVisibleDiv = null;

  for (var i = divs.length - 1; i >= 0; i--) {
    var div = divs[i];
    var style = window.getComputedStyle(div);

    if (style.display !== 'none' && style.visibility !== 'hidden' && style.opacity !== '0') {
      lastVisibleDiv = div;
      break;
    }
  }

  if (lastVisibleDiv) {
    var selector = '';
    var currentElement = lastVisibleDiv;

    while (currentElement !== document.body) {
      var tagName = currentElement.tagName.toLowerCase();
      var index = Array.prototype.indexOf.call(currentElement.parentNode.children, currentElement) + 1;
      selector = tagName + ':nth-child(' + index + ') ' + selector;
      currentElement = currentElement.parentNode;
    }

    return selector.trim();
  }

  return null;
}

var lastVisibleDivSelector = getLastVisibleDivSelector();
console.log(lastVisibleDivSelector);