⚡ Quick Fix (TL;DR)

The Culprit: Styling each element individually means the same change has to be made in many places every time it's adjusted.

The Fix: Define a reusable class once, then assign it to any block or element that needs the same treatment – in WordPress, this is typically added under a block's Advanced -> Additional CSS Class(es) setting.

.quick-fix {
  /* styles go here */
}