Or, you could use it to change anything you want on the page. You can see how long the site takes to load, how much bandwidth it used to download, and the exact color in its text. Right-click on any webpage, click Inspect, and you'll see the innards of that site: its source code, the images and CSS that form its design, the fonts and icons it uses, the Javascript code that powers animations, and more.
There's a powerful tool hiding in your browser: Inspect Element.
