In a sm viewport, how wide is the div with class "col-sm-6 col-lg-4"?

To determine the width of a div with the classes "col-sm-6 col-lg-4" in a small (sm) viewport, it is essential to understand the Bootstrap grid system, which these classes reference.

In Bootstrap, the grid system is based on a total of 12 columns. The classes used specify how many of those 12 columns a given element should span at different viewports.

For the class "col-sm-6," this indicates that in small viewports, the div will take up 6 columns out of the total 12, effectively meaning it will occupy half the width of the container (since 6 is half of 12).

Even though the div also has the class "col-lg-4," which specifies its behavior in large viewports (spanning 4 out of 12 columns), this class does not affect its width in the small viewport. Therefore, for a small viewport, the relevant class is "col-sm-6," confirming that the width of the div is indeed 6 columns.

Thus, the correct answer of 6 references how the div is styled to take up half of the available width in a small viewport.