How to use in-sentence of “number of columns”:
+ The default number of columns is 2, this can be changed by etc.
+ The total number of columns can be set from 1 to 4.
+ Here, “width” specifies the width of the columns, and determines dynamically the number of columns based on screen width; more columns will be shown on wider displays.
+ Each row must have the same number of cells as the other rows, so that the number of columns in the table remains consistent.
+ By setting the width in em, the number of columns will automatically be adjusted to the width of the display.
+ The default number of columns is 2, this can be changed by using etc.

