View Source Https M Facebook Com _verified_ Page
<!DOCTYPE html> <html lang="en" id="facebook"> <head> <meta charset="utf-8"> <title>Facebook</title> <meta name="viewport" content="width=device-width,initial-scale=1"> </head> <body> <div id="header">...</div> <form method="post" action="/login/device-based/"> <input type="email" name="email" placeholder="Mobile number or email"> <input type="password" name="pass" placeholder="Password"> <button type="submit">Log In</button> </form> </body> </html>
"View Source" is a feature available in most web browsers that allows users to inspect the HTML, CSS, and JavaScript code of a webpage. By clicking on "View Source" or pressing a specific keyboard shortcut (usually Ctrl+U or Command+Option+U), users can access the underlying code that makes up a website. This code is written by web developers and is used to structure, style, and interact with the website. view source https m facebook com
The most overwhelming part of viewing the source is the sheer volume of <script> tags. Facebook’s frontend runs largely on React (developed by Facebook, now Meta). The most overwhelming part of viewing the source
The source code often contains massive blocks of CSS at the very top. This is known as "Critical CSS." By including the styles needed to render the top of the page immediately, Facebook ensures the page looks loaded instantly, even before the rest of the data arrives. This is known as "Critical CSS
Below is a deep dive into the anatomy of this source code, segment by segment.