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In a nutshell, i want a right div float to extend vertically 100%
but it only works when i don't include <doctype> on my html
in today's standard, do i really have to add <doctype>?
This is the result in Internet Explorer:
this is just simple html
<html>
<head>
<style type="text/css">
html, body {
padding:0;
margin:0;
height:100%;
}
#wrap {
background:red;
height:100%;
overflow:hidden;
}
#left {
background:yellow;
float:left;
width:70%;
min-height:100%;
}
#right {
background:pink;
float:right;
width:30%;
min-height:100%;
}
</style>
<body>
<div id="wrap">
<div id="left"> Content </div>
<div id="right"> Side Content </div>
</div>
</body>
</html>
288
The absence of the DOCTYPE or its incorrect usage will force the browser to switch to quirks mode. It means that the browser will do its best to layout the page that is considered to be old or created against web standards.
Per HTML and XHTML standards, a DOCTYPE (short for “document type declaration”) informs the validator which version of (X)HTML you're using, and must appear at the very top of every web page. DOCTYPEs are a key component of compliant web pages: your markup and CSS won't validate without them.
Doctype HTML is a declaration that tells the browser what version of HTML the document is written in. This declaration appears as the very first line in an HTML file.
DOCTYPE html> // Tells the browser that we are using HTML5. If document type is not mentioned, browser will go to Quirks mode. Quirks mode depends upon the web browser version, If is older version then this will not support HTML5 tags (Example: header tag, footer tag, section tag,...)
in today's standard, do i really have to add
<doctype>?
You don't have to do anything, but the absence of the DOCTYPE is essentially asserting that you conform (in the loosest sense of the term) to an unknown/inconsistent "quirks" standard.
I imagine the solution is as simple as setting the height of the parent container to 100% or to a specific pixel height.
HTML and BODY elements.Working example: http://jsfiddle.net/7xxFj/
<div id="one">
First column
</div>
<div id="two">
second column
</div>
HTML, BODY { height: 100%; }
#one { height: 100%; width: 30%; float: left; background-color: red; }
#two { height: 100%; width: 70%; float: left; background-color: blue; }
As @BoltClock pointed out in the comments, you probably want a layout that can extend beyond 100%. This requires a little more effort (but still works well within the standard).
This article shows several methods for accomplishing layouts with equal column heights. More methods here.
146
If you are thinking of considering IE (any version for that matter, lets not digress to this topic), then you are better of specifying the DOCTYPE. I have seen many pages which do not do this properly through IE into the famous Quirks mode.
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