2 boxes of same height (percentage) - html

Question

How to create two boxes (floating side by side) of same height.
I want to create boxes of height 40% of the container/window?

Answer 1

See the Example Here
If that is what you are looking for, here is more:
CSS:
#parent{
width:205px;
height:200px;
border:1px solid #000000;
overflow:auto;
}
#child1{
height:40%;
background:#00ff00;
float:left;
}
#child2{
height:40%;
background:#0000ff;
float:left;
}
The Important Points:
The float:left is used to align the two boxes side-by-side
The height is specified in % for both child boxes so that they inherit from their parent.
HTML:
<div id="parent">
<div id="child1">
This is first box
</div>
<div id="child2">
This is second box
</div>
</div>

Answer 2

This should be a simple solution for you. Here's my example:
jsfiddle
HTML:
<div class="wrap">
<div class="left">
Content
</div>
<div class="right">
More content
</div>
</div>
CSS:
.wrap
{
width: 400px;
height: 500px;
border: 1px solid #000;
}
.left, .right
{
float: left;
width: 45%;a
height: 40%;
margin: 2%;
}
.left
{
border: 1px solid #f00;
}
.right
{
border: 1px solid #00f;
}
​

Answer 3

Using a % as height is relative to your parent container's height. Therefore you need to declare the height of your parent container. Take a look at this tutorial: Equal Height Columns.

Answer 4

The question specifically mentions floating, and there have been several good answers for that, but I thought it might be worth posting an answer that doesn't use floats in case the the mention of floating was accidental:
.wrapper {
width: 400px;
height: 400px;
outline: 1px solid #000;
}
.wrapper div {
display: inline-block;
width: 198px;
height: 40%;
background: #66c;
}
.wrapper div:first-child {
background: #6c6;
}
<div class="wrapper">
<div>This is the first box</div>
<div>This is the second box</div>
<p>Some other content</p>
</div>
It doesn't currently work in WebKit, but I assume that's a bug and there'll be a workaround, I am investigating. If you need it to work in IE < 8 add a conditional comment:
<!--[if lt IE 8]>
<style>
.wrapper div { zoom:1; *display:inline;}
</style>
<![endif]-->