Let's create a floating label input with HTML and CSS only - DEV Community
Create Bootstrap 4 Form Controls With Floating Labels | CSS Script
GitHub - exacti/floating-labels: Floating Labels for Bootstrap using just CSS
Float Label Pattern | Brad Frost
GitHub - anydigital/float-label-css: Bulletproof CSS-only implementation of Float Label pattern with automatic fallback for ANY non-supporting browser.
9 Floating Form Label jQuery & JavaScript Plugins - Ensegna Blog