在Chrome中，按Ctrl + Shift + J(或Ctrl + Shift + I). IT会向您显示Javascript控制台或Chrome开发工具中的标签之一.检查那里是否有任何错误.转到资源"选项卡，检查哪些项目已加载(或仍在加载)，以防万一出现意外问题-应将其标记为红色.您也可以尝试使用审核"选项卡来审核页面，它应该为您提供有关可能出问题的提示/建议.

While in Chrome, press Ctrl + Shift + J (or Ctrl + Shift + I). IT will show you Javascript console or one of the tabs in Chrome development tools. Check if you have any errors there. Go to the Resources tab and check what items are loaded (or are still loading), in case there is some unexpected issue - it should be marked in red. You can try to Audit your page using Audits tab too, it should give you some hints/advices on what can be wrong.