CSS - What's Em, Pt, Pc, Px, Ex, % When Declaring Width, Height Or Position In Css?

Hello all, still a little new to css layout problem-shooting in older browsers, so thanks for your help in advance!

I'm having a problem which is only occurring in Internet Explorer 6, but I just can seem to figure out what's wrong.


if you look at the page in any other browser, you can see the header <div> stretches the width: 100%, but in IE6, the header <div> does not extend all the way to the left, but rather starts where the margin:auto Main <div> tag starts from the left side.

What I am lost on is that the footer <div> performs this just fine, but it's position is not fixed and there is no z-index. here is the code for both, and thanks again for having a look:

#header {
width: 100%;
height: 107px;
display: block;
position: fixed;
margin: 0px;
padding: 0px;
background-color: #000000;
background-image: url(../images/main/bhs_design_header_gradient.jpg);
z-index: 100;

}

#footer {
width: 100%;
height: 35px;
display: block;
background-color:#000000;
margin-top: 10px;
clear: both;
text-align: center;
font-family: Arial, Helvetica, sans-serif;
font-size: 11px;
font-weight: bold;
color: #EBEAE8;
margin: 0px;
background-image: url(../images/main/bhs_design_footer_gradient.jpg);
}

Hi,

I have a layout to build and I want to make it as accessibile as possible to the user. I therefore want to allow the user to be able to determine the site font sizes while also keeping the layout look as good as possible.

The only way I have done this so far is by setting the width and height of other elements (div's mostly) using the em type.

Is this ok? Or I am doing this totally wrong?

Regards,
Sim085

Hey all,

I need an area of content, defined by a div element.
I would like it to have a minimum width of 550px, and a minimum height of 500px. However occasionally not everything will fit inside the box. Occasionally the box will contain a picture or word or flash file that exceeds 550px wide. When this happens, I'd like the box to be able to stretch to become wide enough to fit the big word/picture. Likewise when there is too much text, or a picture that is too long, I'd like the box to become tall enough to contain everything.

My first attempt was using min-width and min-height. The height worked great, but since divs are block elements, the width would always be 100% instead of 550px. So I then tried adding "display: inline-block;". This made the width work, but now the text didn't automatically go to the next line when it reached the right of the box; instead, the box just increased in width.

So to sum it up, I need something like this to have a width and height of 550/500:

<div id="test">This sentence is small</div>

But this one to stretch to the size required to contain the long word:

<div id="test">adsfasdfasdfadfadfasdfasdfasdfasdfadsfasdfasdfadsfasdfasdfasdfasdfad sfasdfasdfadsfasdfasdfadsfasdfasdfadsfasdfasdfasdf</div>

basically i want to span an absolute div 100% height and width to cover the whole browser window.. IE fails at this..

what are some methods used to get around this?

Hey all,
I'm playing with an idea to include a 100% width/height log_in iframe to be displayed only if $_SESSION[uid]==''; (user not logged in) utilizing the following in a remote style.css to "show" the home page behind the iframe via opacity of 10%, while the iframe blocks access to it untill user logs in.
My problem is that width:100%; height:100%; doesn't work, while pixel width & height does in the following: Code:

iframe {
position:absolute;
	top: 0px;
	left: 0px;
	width:800px;/*works*/
	height:800px;/*works*/
	/*width:100%; doesn't work*/
	/*height:100%; doesn't work*/
	z-index: 100;
	filter:alpha(opacity=10);
	-moz-opacity:.10;
	opacity:.10;
}

Hi there

Has anyone encountered a bug in IE (6) of extra width, when applying css height property to a div?

I set the width of div, via margin
Code:

div#footer {
  margin: 0px 9%;
  height: 40px;
}

When height is specified, the width of the footer is 1px bigger on either side, then other elements with same margin, but no height.

This does not happen in other (gecko) browsers!

Anyone know a solution, (tantek won't be precise enough with %)
??

I'm new to css web design and am attempting my first full layout. What I would like to do is have a hanging picture in the upper-righthand corner of the page that overlaps the header and content sections.

All is well, until I specify a width or height on the content section.

Although it looks fine in Firefox, IE either:
a) moves the content section down or
b) squishes the content to the side (if <!--<?xml version="1.0" encoding="utf-8"?>--> is in the html)

Here's some much-simplified code to illustrate the problem:

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
    <meta http-equiv="Content-Style-Type" content="text/css" />
    <link href="images/style_test.css" rel="stylesheet" type="text/css" />
    <title>Sandbox</title>
</head>
<style type="text/css">
	#header {
		background-color: #cccccc;
		border: 1px solid #564b47;
	}

	#content {
		background-color: #c6dedf;
		border: 1px solid #564b47;
		width: 100%;
		height: 400px;
	}
	
	#hanging {
		float: right;
		background-color: #ccff99;
		border: 1px solid #564b47;
		margin: 20px;
		padding: 0;
		width: 300px;
		height: 300px;
		clear: right;
	}
	
	#footer {
		background-color: #cccccc;
		border: 1px solid #564b47;
		clear: both;
	}
</style>
<body>
    <div id="hanging"><code>#hanging {<br>
		float: right;<br>
		background-color: #ccff99;<br>
		border: 1px solid #564b47;<br>
		margin: 20px;<br>
		padding: 0;<br>
		width: 300px;<br>
		height: 300px;<br>
		clear: right;<br>
	}</code><p>This SHOULD overlap header & content.</p></div>
    <div id="header"><code>#header {<br>
		background-color: #cccccc;<br>
		border: 1px solid #564b47;<br>
	}</code></div>
    <div id="content"><code>#content {<br>
		background-color: #c6dedf;<br>
		border: 1px solid #564b47;<br>
		width: 100%;  /* hanging doesn't like this */<br>
		height: 400px;  /* or this in IE*/<br>
	}</code></div>
    <div id="footer"><code>#footer {<br>
		background-color: #cccccc;<br>
		border: 1px solid #564b47;<br>
		clear: both;
	}</code></div>
  </body>
</html>

Anyone know a work-around or how to fix this? Thanks!

Hi,

I have a page where I want to display some preformatted code inside a bordered box that has a fixed width/height with automatic scrolling. I can do this with a DIV + several css styles. However, when I generate the same file with Perl/CGI, The width/height stops working (at least not on my browser, Mozilla 1.1).

Here is the file that works:

Code:

<html> 
<head> 
 
<style>
 
.textarealike{
	overflow: auto; 
	border: 2px solid #0000FF; 
	color: #000000; 
	height: 30; 
	width: 350;
        font-family: "Courier New";
        font-size: 10pt;
        padding: 5px;
}
 
</style>  

</head> 
<body> 
 
<div class="textarealike"><pre>
Some stuff
Some stuff
Some stuff</pre></div>
</body>
</html>

and here is code that doesn't:

Code:

<!DOCTYPE html
	PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
	 "http://www.w3.org/TR/html4/loose.dtd">
<html> 
<head> 
 
<style>
 
.textarealike{
	overflow: auto; 
	border: 2px solid #0000FF; 
	color: #000000; 
	height: 30; 
	width: 350;
        font-family: "Courier New";
        font-size: 10pt;
        padding: 5px;
}
 
</style>  

</head> 
<body> 
 
<div class="textarealike"><pre>
Some stuff
Some stuff
Some stuff</pre></div>
</body>
</html>

The only difference is the DOCTYPE header generated by the CGI script..... and I have no idea why this is:

Can anyone help me out?

Thanks,
Frank

I am presently creating a website for a friend of mine who's a model and wants her own website, I have decided to make it using xhtml and css.
The problem that I am having is that I would like to have a footer which is at the very end of the page no matter how much content there is to the page.
I have uploaded the code to here

When this page is viewed in IE the footer is displayed at the bottom of the screen although the content carries on after the footer.
When this page is viewed in Firefox the footer is displayed just below the bottom of the screen although again the content carries on after the footer.

I have Googled this and tried out a couple of the suggested ways of getting the page to work and it just doesn't appear to want to work, so I am obviously doing something wrong :s

Does anyone have any idea how I would be able to get the footer to stay at the very bottom of the webpage?

Also if you look at the website you will see that the navigation sidebar only goes down as far as its content, I would prefer it if the sidebar went down to the footer (which will hopefully be at the bottom of the webpage).

Again does anyone have any idea how I would be able to get it to do this.

Hi to all, and thanks a million in advance for help.

I have developed a simple online cms and everything is setup correctly but i am stuck at one place.

I am unable to make width to 100% when b div is empty

i mean

a div = 50% width,
b div = 50% width,

how set it up that when a div is empty then b div goes to 100%width and when b div is empty then a div is 100% width.

i hope got my question.

because currently i have set in this way.

wrapper div = 980px width,
a div = 50% width,
b div = 50% width,
wrapper div end

so when a div is empty then b div is still present and that area is empty it destroy the whole look.

thanks arsslan

I'm pretty sure I know the answer to this unless there is a trick or hack....Can u set a background images height & width in a tag?

I have a logo'd masthead that I need to reduce when the user wants to print the page. I know I can just create a print-specific image but, I thought I'd ask to see if there was a way to reduce the image thru .css???

thanks!
Stephen

The problem I have has arisen whilst trying to create a horizontal and a vertical navigation menu using <li> tags. It is best illustrated by the following example:
Code:

<div style="width:100%;height:50px;">
<ul>
<li style="border:1px solid black;">Hello</li>
<li>World</li>
</ul>
</div>
<br />
<div style="width:100px;height:100%;">
<ul>
<li style="border:1px solid black;">Hello</li>
<li>World</li>
</ul>
</div>

and the CSS
Code:

div {
  border:0;
  background-color:#888888;
  }
ul {
  margin:0;padding:0;
  }
ul li {
  float:left;
  list-style:none;
  background-color:#CCCCCC;
  height:50px;
  width:100px;
  }

The <div> tags are set to 50px height and 100px width respectively. When an <li> element is placed within the div with the same height or width they display the way I intended. However once a 1px border is applied to the <li>'s then in IE the border is counted as part of the width or height. In Firefox the border will add 2px to the starting height and width giving the effect of width:102px or height:52px;.

This is massively frustrating as I need each <li> to have the 1px border. It looks different in each browser (I have not tested it in netscape nor opera, but I suspect they will display the same as Firefox.)

Can anyone provide a fix to get get round this please? Thank you in advance.

Is there a way to expand the height and width of a DIV to the height and width of the document, not the browser window? When I set it too 100%, and scroll, the div remains the size of the original window. The DIV is for a background grey out screen, and I want it to encompass the height and width of the document and persist when scrolling. Explicitly setting height and width with pixels doesn't work, because that depends on the user's screen resolution.

Any thoughts?

Many thanks...

Hi,

My client very much likes a website that belongs to their competition. The thing she likes the most is the fact that the content is centered horizontally and vertically in the browser window.

The way they (her competition) have constructed the site is to to place all the content inside a table 100% wide and 100% high with the content centered horizontally and vertically using the table's valign and align attributes.

However, this isn't very "standards", is it . . . so, does anyone know of a way this same effect (content centered horizontally and vertically in browser window) can be acheived using CSS?

Thanks!

Have a look at this code. Why is the background not showing up as the appropriate pixel sizes?

PHP Code:
<html>
<head>
<title>CSS Testing</title>

<style type="text/css">

.test-height {
    width:200px;
    height:108px;
    background-color:yellow;
}

#test {
    width:200px;
    height:108px;
    background-color:red;
}


</style>
</head>
<body>


<div class="test-height"><p>This should be 200px high and 108px wide.</p></div>

<br /><a href="#" class="test-height">Click Me (This should be 200px high and 108px wide.)</a>


<div id="test"><p>This should be 200px high and 108px wide.</p></div>


<br /><a href="#" id="test">Click Me (This should be 200px high and 108px wide.)</a>


</body>
</html> 






Any feedback is appreciated. Thanks in advance.

Regards,

CH...