Utilities API
BCL maps many Bootstrap utilities to strongly named Razor attributes on its components and additive elements.
BCL mapping
For docs examples, prefer <bs-div>, <bs-p>, and <bs-span> when the sample is about Bootstrap utility composition. Those additive helpers render ordinary HTML elements and expose the shared BCL attributes for spacing, colors, borders, display, flex, position, sizing, text, and related utilities.
When a Bootstrap utility has no BCL attribute or helper, the matching docs page calls that out as an omission instead of showing raw class-based markup.