31 merge requests!28721Hot test,!27561Adds font-weight-medium to font weight classes,!26437merge,!26197V4 dev xmr,!20778V4 dev,!20539Allow multiple modals,!20854Fixes 15534,!19272V4 dev xmr grunt html,!19581V4 fix popover,!20493V4 dev display,!20636Fix docs for heading sizes,!19824blockquote-center,!22547Finished a new translation for bootstrap,!19534Docs 17264,!18704Extend form docs with example form errors,!19533Npm deps,!22143Fix selectable disabled toggle radio buttons,!22598test,!21067dfsa,!19602V4 palettes arun,!19448New pull request for testing,!19358XXL grid size,!19825.blockquote-center,!25326Adjust examples,!23995Add back cursor: pointer for .btn-link,!23178Spinner,!19754Issue template,!19753Card img overlay padding,!19580ExitStars,!19099v4: Grid redux,!17021v4
@@ -52,8 +52,7 @@ The above example creates three equal-width columns on small, medium, large, and
## Grid options
While Bootstrap uses `em`s or `rem`s for defining most sizes, `px`s are used for grid breakpoints and container widths.
This is because the viewport width is in pixels and does not change with the [font size](https://drafts.csswg.org/mediaqueries-3/#units).
While Bootstrap uses `em`s or `rem`s for defining most sizes, `px`s are used for grid breakpoints and container widths. This is because the viewport width is in pixels and does not change with the [font size](https://drafts.csswg.org/mediaqueries-3/#units).
See how aspects of the Bootstrap grid system work across multiple devices with a handy table.
