How would you explain the need to be able to update anti-virus software? O New viruses are created all the time so updating the anti-virus software is key.
O It is only needed when you want to change the color of software fonts.
O It is only recommended so that the anti-virus company can make more money.
O There is no need to update anti-virus software.

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)