message: added z-index
diff: @@ -3634,6 +3634,7 @@ Selenium.prototype.doShowElement = function(locator){
  const elementRects = element.getClientRects()[0];
  const bodyRects = document.body.getClientRects()[0];
  highlightElement.style.position = "absolute";
  + highlightElement.style.zIndex = "100";
  highlightElement.style.background = "rgb(86, 184, 247)";
  highlightElement.style.opacity = "0.6";
  highlightElement.style.visibility = "visible";
  