Before inserting a preformatted table of contents, what must you do first?
apply heading styles to text
update the table of contents
navigate to the review tab and the table of contents grouping
navigate to the insert table of contents dialog box

They were fooled by a lot of people

Answer made of magnesium alloy;

Well, this code would box the whole body of an html document. by using the relative value for position, you are telling it to position relative to its normal position, which the top left corner is at (0,0). by using left: 50px, you are telling the box to set the left margin  edge to 50px and by using top: 50px, you are telling it to set the top margin edge to 50px. by doing this shifting, the top left corner of the box, which is at (0,0) would be positioned at (50,50)