1.Identify the element that marks the distinct rows and columns of a grid to give a consistent structure to floating objects.

A. head

B. div

C. margin

D. p

2. A layout for a mobile device is typically based on a _____ grid.

A. 6-column

B. 1-column

C. 13-column

D. 12-column

3. The _____ pseudo-class is to be used for a situation in which a user has moved the mouse pointer over a hypertext link prior to clicking the link.

A. active

B. root

C. link

D. hover