React typically uses client-side rendering (CSR). This means that it dynamically injects the HTML code in the target div (it generally uses the #app or #root IDs), and that's why if you try to see the page's code directly (right-click—View Page Code) you will see something like this:
The only way to see the actual code is by inspecting the site with Chrome Dev Tools, or other tools, and here is the code generated by React using CSR:
By inspecting the page, you can see the code that is injected into our #root div. Server-side rendering ...
