I am wondering how it is possible to place a div box (that I want to place an image in) so it appears over the top of another div in the center bottom.

I am trying the following code:
<html>
<body>
<style type="text/css">
.outer {
width: 350px;
height: 350px;
}
.inner {
width: 100px;
height: 100px;
background-color: red;
}
</style>
<div class="outer">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pellentesque, neque ut ultrices posuere, velit arcu aliquam dui, id rutrum justo leo nec purus. Donec aliquet justo a est iaculis id porta nulla pulvinar. Proin quis turpis vitae augue volutpat volutpat. Donec volutpat accumsan urna, id vulputate augue euismod eu. In vitae libero tortor. Integer lacinia, turpis vel egestas ornare, nisi libero tempus orci, non imperdiet erat nulla malesuada lectus. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae;
<div class="inner"></div>
</div>
</body>
</html>
A combination of absolute positioning and auto margins on the inner div will work. You also need to set position to relative for the outer div
jsFiddle DEMO