What is one difference between IDLE and Eclipse? IDLE is a multi-language IDE, while Eclipse is a language-specific IDE.
IDLE is a language-specific IDE, while Eclipse is a multi-language IDE.
IDLE is proprietary software, while Eclipse is open-source software.
IDLE is open-source software, while Eclipse is proprietary software.

Ce3

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)