Selenium如何定位悬浮框（收缩框）：Chrome

如何定位悬浮框（收缩框）：（谷歌浏览器）
步骤：
1.按F12
2. 进入Source页面
3. 鼠标悬停在悬浮框上
4. 按F8 或 Ctrl + \（此操作冻结DOM并暂停脚本执行）, 直到看到“pause in debugger” 弹框出现。

5. 按 Ctrl + Shift + C, 然后就可以去定位收缩框里的类容啦

an alternative method in Chrome
While the element you want is displayed, press F8 (or Ctrl+/). This will break script execution while freezing the DOM exactly as it is.
From there you can use Ctrl+Shift+C to select the fleeting element.

参考文档链接：https://stackoverflow.com/questions/19422214/how-can-i-inspect-disappearing-element-in-a-browser

参考文档链接：https://blog.csdn.net/sheng_xinjun/article/details/88287153：Sources-> Event Listener Breakpoints-> Mouse-> mousedown in Chrome