No (border, box shadow) change when input is invalid · Issue #12071 · twbs/ bootstrap · GitHub
Bootstrap Snippet Shadow using HTML CSS
Box Shadow Effect For Card UI - csshint - A designer hub
12+ Bootstrap Box Shadow Examples - OnAirCode
javascript - Unwanted shadow border on element with perspective after applying bootstrap - Stack Overflow
Border hero with cropped image and shadows - Bootstrap 5 Snippets
Bootstrap shadows / Material Design shadows - examples & tutorial
12+ Bootstrap Box Shadow Examples - OnAirCode
12+ Bootstrap Box Shadow Examples - OnAirCode
Bootstrap 5 Card with Shadow on Hover — CodeHim
How to Create Multiple Borders in CSS3 — SitePoint
Shadows in Bootstrap with Examples - GeeksforGeeks
12+ Bootstrap Box Shadow Examples - OnAirCode
Box shadow , rounded corner shadow , circle shadow
html - How to remove outline in bootstrap 4 - Stack Overflow
Bootstrap Border & Shadow Classes Tutorial in Hindi / Urdu - YouTube
A Close Look at CSS Box Shadow - WebFX
CSS Shadow Effects
html - make the border thicker and change color or give shadow effect on awesome-bootstrap-checkbox? - Stack Overflow
12+ Bootstrap Box Shadow Examples - OnAirCode
12+ Bootstrap Box Shadow Examples - OnAirCode
Bootstrap Snippet shadow box using HTML CSS
