```
The code snippet is a HTML template for displaying a post on a social media platform. The post includes a user profile picture, username, datetime, and content. It also has meta information such as the number of replies and favorites.
To write this code from scratch, you would need to:
1. Define the HTML structure: You would start by defining the basic structure of the page using HTML elements such as `div`, `span`, `a`, etc.
2. Add CSS classes for styling: You would add CSS classes to style the different parts of the post, such as the user profile picture, username, datetime, content, and meta information.
3. Write JavaScript code (if needed): Depending on the functionality you want to achieve, you might need to write some JavaScript code to handle events such as clicks on the favorites or replies icons.
Note: The actual implementation may vary depending on the specific requirements of your project.