There is a company in your community that is starting to offer a wimax service for internet access. the company promises 2-mbps downloads. if the company predicts that this new service will attract 2000 customers, what is the bandwidth necessary to support this service?

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)