a friend is having trouble with keeping a fish tank at the right temperature so the fish stay healthy. describe how you can use at least one type of input and one type of output to create a physical computing device to help this friend.

Network media is most important for you to choose before you build a network

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)