The Chrome Developer Tools is really a power tool for web developer. My favorate feature is the element inspection, with this, you can pick some element from the browser, and the developer tool will be brought up and the corresponding element will be highlight in the Elements panel. Defaultly, you can access the inspect feature in the browser's context menu. But in some web page, the browser context menu is not allowed, so you need access it via the shotcut: Control - Shift - C to toggle Inspect Element mode.
Ref https://developers.google.com/chrome-developer-tools/docs/shortcuts for more.
Reproduced in: https: //www.cnblogs.com/jalenwang/archive/2012/04/28/chrome-developer-tools.html