How to wrap divs like this?

Consider you have a div with fixed height and开发者_JAVA百科 weight (in the drawing the innermost one), and you want the surrounding divs to contain it, with an out margin of e.g. 1 em. How would you do that?

+--------+
| +-----+|
| |+---+||
| ||   |||
| |+---+||
| +-----+|
+--------+

One way is to use the inline-block display style:

div { border: 1px solid blue; } 
div.wrapper { 
  border: 1px solid red;
  padding: 1em;
  display: inline-block;
}

For this HTML:

<div class="wrapper">
<div class="wrapper">
<div style="width: 100px; height: 83px;">This</div>
</div>
</div>

Here's an example: http://jsfiddle.net/redler/zSrXA/

You can also try playing with display: table-cell.

Here is a variant of Ken Redler's solution that uses margin instead of padding (margin is outside the border, padding is inside the border).

div.inner
{
    border: 1px solid blue;
    margin: 1em;
}

div.outter
{
    border: 1px solid red;
    margin: 1em;
    display: inline-block;
}

Here is an example fiddle

My solution is the following using position:relative:

html

<div id="first">
    <div id="second">
        <div id="third"></div>
    </div>
</div>

css

div {position:relative;top:1.5em; left:1.5em}
#first {width:200px; height:200px; background:green}
#second {width:150px; height:150px; background:blue}
#third {width:100px; height:100px; background:black}

demo: http://jsfiddle.net/khfMe/

See the working example here..

<div class="margin1" id="div1">&nbsp;</div>

<style>
.margin1
.margin1{
margin:1em;
    border:1px solid red;
    display:inline-block;
}
#div1{

    height:40px;
    width:20px;
}
</style>

Then use jQuery to wrap the div's as required..

$('#div1').wrap('<div class="margin1"/>').wrap('<div class="margin1"/>');