How can I adjust DIV width to contents

Question

I have a div element with style attached:

.mypost {
    border: 1px solid Peru;
    font-family: arial;
    margin: auto;
    min-width: 700px;
    width: 700px;         


        

Answer 1

EDIT2- Yea auto fills the DOM SOZ!

#img_box{        
    width:90%;
    height:90%;
    min-width: 400px;
    min-height: 400px;
}

check out this fiddle

http://jsfiddle.net/ppumkin/4qjXv/2/

http://jsfiddle.net/ppumkin/4qjXv/3/

and this page

http://www.webmasterworld.com/css/3828593.htm

Removed original answer because it was wrong.

The width is ok- but the height resets to 0

so

 min-height: 400px;