Bootstrap 5 UI Production patterns for building responsive, accessible web UIs with Bootstrap 5.3 in HTML and ASP.NET Core Razor Pages/Views. Target Bootstrap 5.3.x (current CDN: 5.3.8). Bootstrap 5 dropped jQuery dependency entirely. Setup in ASP.NET Core CDN (Quick Start) In or : LibMan (Recommended for Production) Reference locally in layout: Required Globals Always include in : Grid System Bootstrap uses a 12-column flexbox grid with 6 responsive breakpoints: | Breakpoint | Prefix | Min-width | |------------|--------|-----------| | Extra small | | <576px | | Small | | =576px | | Medium |…