Displaying divs like tables with rowspans - css

Question

<div class="div1">1</div>
<div class="div2">2</div>
<div class="div2">3</div>
.div1 {
border: 1px solid red;
float: left;
width: 20px;
}
.div2 {
border: 1px solid green;
width: 100%;
}
Please look at my code at JS Fiddle
I'm wanting to get div 1 to stretch the height of both divs 2 and 3, like you would do with table's rowspan.
I'm not proficient enough with understanding how to do table stuff in divs to figure this one out.
Thanks!

Answer 1

You can use the table/table-cell display css options.
UPDATED Fixed stretching issue.
<div style="display:table">
<div style="display:table-cell;height:100%;" class="div1">
1
</div>
<div style="display:table-cell;width:100%">
<div class="div2">2</div>
<div class="div2">3</div>
</div>
</div>
Link to JSFiddle: https://jsfiddle.net/pho5p7cc/8/

Answer 2

Here's what I would do. Create a div around all of your current div, then use css positioning to edit the lengths within the div.
Here's an example,
http://jsfiddle.net/tjgerot/v2469Leu/
<div class="table">
<div class="div1">1</div>
<div class="div2">2</div>
<div class="div2">3</div>
</div>

Answer 3

I would use a container to hold your DIV 2,3. Then margin the left of the container to allow space for your DIV 1.
Im not sure it's the smoothest way to code, but it works.
https://jsfiddle.net/pho5p7cc/3/
html
<div class="div1">1</div>
<div class="container">
<div class="div2">2</div>
div class="div2">3</div>
</div>
css
.div1 {
border: 1px solid red;
float: left;
width: 20px;
}
.div2 {
border: 1px solid green;
width: 50px;
margin-left:20px;
}
.container{
}