CSS 3 col template 100% same height - html

Question

I'm trying to do the next:
html > body > div-wrapper > div-left, div-separator, div-content
The three div will have the same height
If they are empty ( or no overflow), the height will be the 100% of the page (without scrolls).
If some of they overflows, I will have only 1 scroll that scrolls down/up the three divs at the same time (scrolling the wrapper i think).
It's this possible? I spent 7 hours thinking about it but I can't solve only with HTML + CSS (without using flexbox).
Thanks,

Answer 1

That's a great question! It took me quite a while to create a graceful solution for you.
What you need is the dynamic sticky footer technique with an extra container for columns.
HTML
<div id="container">
<header class="section">
foo
</header>
<div class="section expand">
<div class="columns-container">
<div class="column" id="a">
<p>Contents A</p>
</div><div class="column" id="b">
<p>Contents B</p>
</div><div class="column" id="c">
<p>Contents C</p>
</div>
</div>
</div>
<footer class="section">
bar
</footer>
</div>
CSS
/*************************
* Sticky footer hack
* Source: http://pixelsvsbytes.com/blog/2011/09/sticky-css-footers-the-flexible-way/
************************/
/* Stretching all container's parents to full height */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
/* Setting the container to be a table with maximum width and height */
#container {
display: table;
height: 100%;
width: 100%;
}
/* All sections (container's children) should be table rows with minimal height */
.section {
display: table-row;
height: 1px;
}
/* The last-but-one section should be stretched to automatic height */
.section.expand {
height: auto;
}
/*************************
* Full height columns
************************/
/* We need one extra container, setting it to full width */
.columns-container {
display: table-cell;
height: 100%;
}
/* Creating columns */
.column {
/* The float:left won't work for Chrome for some reason, so inline-block */
display: inline-block; /* for this to work, the .column elements should have NO SPACE BETWEEN THEM */
vertical-align: top;
height: 100%;
width: 33.3333%;
}
/****************************************************************
* Just some coloring so that we're able to see height of columns
****************************************************************/
header { background-color: yellow; }
#a { background-color: pink; }
#b { background-color: lightgreen; }
#c { background-color: lightblue; }
footer { background-color: purple; }
Demo
Compact columns content: http://jsfiddle.net/hsX5q/19/
One of the column's content overflows window height: http://jsfiddle.net/hsX5q/20/
PS
You've got a wrong CSS selector in your question. The correct would be:
html > body > div-wrapper > div-left,
html > body > div-wrapper > div-separator,
html > body > div-wrapper > div-content {

Answer 2

<style type="text/css">
.wrap {
border: 1px solid #f00;
height: 100%;
width: 100%;
}
.wrap div {
border: 1px solid #00f;
overflow: auto;
height: 100%;
width: 33%;
float: left;
margin: 0px;
}
</style>
<div class="wrap">
<div>Contents A</div>
<div>Contents B</div>
<div>Contents C</div>
</div>
or
<frameset cols="33%,*,33%">
<frame src="frame_a.htm">
<frame src="frame_b.htm">
<frame src="frame_c.htm">
</frameset>

Answer 3

Just do that :
.col{
display:block;
height:100%;
}
It's Simple, it's fast, it's css.