Smooth Hover Underline Effects (with Box-Shadow)

Today, we’ll build a set of hover underline animations in Webflow — powered by box-shadow and smooth CSS transitions.
You’ll learn how to:
✅ Create a growing underline from the bottom
✅ Animate from the top, left, and right
✅ Build a full-height underline effect
✅ Even animate multiple borders at once with a simple trick
No custom code needed — just smart use of styles and transitions.
👉 Watch on YouTube: https://youtu.be/bTXWsrMSPaY