Summary & Key Takeaways ​

• The article demonstrates a clever approach to computing and displaying discounted prices using only CSS.
• It utilizes modern CSS features such as attr() to retrieve values from HTML attributes.
• The mod() and round() functions are employed for mathematical calculations within CSS.
• This technique allows for dynamic price adjustments and display without requiring JavaScript.
• It showcases the increasing power and capabilities of modern CSS for UI challenges.

Our Commentary ​

This is a fantastic example of pushing the boundaries of what's possible with modern CSS. While I wouldn't necessarily recommend doing complex financial calculations purely in CSS for a production e-commerce site (JavaScript is generally more robust for that), the ingenuity here is undeniable. It's a brilliant demonstration of attr(), mod(), and round() in action, showing how far CSS has come. It sparks ideas for other dynamic UI elements that could benefit from similar CSS-only logic, reducing reliance on JavaScript for purely presentational calculations. A great read for anyone looking to deepen their understanding of advanced CSS capabilities.