41.
Which of the following selector is used to selects the element that is the root of the document?

42.
Which of the following selector is used to select elements that are read-only. When applied to form elements, this would select fields with the readonly attribute set?

43.
Which of the following measurement represent seconds?

44.
Which of the following property is used to control column element breaks after an associated element when flowing multicolumn text?

45.
Which of the following property is used to control column element breaks before the associated element when flowing multicolumn text?

46.
Which of the following property defines the number of columns in a multicolumn text flow?

47.
Which of the following property defines the gap between columns in a multicolumn text flow?

48.
Which of the following property defines the style of the divider rule between columns in a multicolumn text flow?

49.
Which of the following property defines the width of a rule between columns in a multicolumn text flow?

50.
Which of the following property is a shorthand definition of the number of columns and their widths in a multicolumn text flow?