You have created a new software application and are ready to distribute it to other users. you have decided to license the software according to the gnu gpl version 3. what does this license allow you to do with your software?

You have created a new software application and are ready to distribute it to other users. You have decided to license the software according to the GNU GPL version 3. What does this license allow you to do with your software?
Your software is available for free use and alteration by other programmers, who must then make their modified versions freely available as well.

Idont think its possible

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)