Suppose I have two nested divs. Something like below:-
<div id="div1">Some name here
<div id="div2">DIV2</div>
</div>
Suppose the height and width of div1 is 100px. And the height and width of div2 is 50px. How do I make them appear concentric i.e div2 must lie inside div1 equidistant from all sides (using CSS).