Summary & Key Takeaways ​

• Frontend Masters tackles the challenge of drawing a dynamic line with arrows between two arbitrary elements using only CSS.
• The article demonstrates how to measure and display the distance between these elements.
• This advanced CSS tutorial showcases the capabilities of new features like anchor positioning for complex layout problems.

Our Commentary ​

Anchor positioning is the CSS primitive that was missing for this class of problems. Before it, connecting two arbitrary elements with a line meant reaching for JS libraries like Floating UI or Popper. The fact that you can do the positioning, the arrow, and the distance label in CSS alone is a signal that the platform is genuinely catching up to what JS has been doing for years.