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bargraph behind text lines?

Posted on 2004-03-20
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Last Modified: 2010-04-09
How can I put a colored background behind a line of text with a width that is some number of pixels and not related to the width or character spacing of the text.

So, I have a list of file names and I want to add a sort of a bar graph that shows how big the file is, but I don't want to take up any space in the listing. I have a nice little yellow span with a width that follows the file size, but it shows up after the file name and not behind the file name.

html+=f.Name+"<span style='width:"+f.Size*scale+"px;color:red;background-color:yellow;height:3px;'></span><BR>";

If I do absolute position and the window is resized causeing something above the list to wrap, don't I have to recalculate all the absolute positions? I want the position to be 0,0 relative to the start of each file name.

browser compatibility would be nice but I'll accept an IE only answer.
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Question by:JamesNewton
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4 Comments
 
LVL 31

Accepted Solution

by:
seanpowell earned 2000 total points
ID: 10641253
One way to do it:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
  "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Vertical Centers</title>
<style>

#back
{
    position:absolute;
    height:20px;
    width:50px;
    background-color:red;
    z-index:-2;
}

#text
{
    position:relative;
    z-index:1;
}

</style>
</head>
<body>

<div id="text">
<div id="back"></div>
This text displays on top of the colored background
</div>

</body>
</html>
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LVL 31

Expert Comment

by:seanpowell
ID: 10641261
>>If I do absolute position and the window is resized causeing something above the list to wrap, don't I have to recalculate all the absolute positions?

In this case, the text div is positioned with relative, so the absolute position is in relation to the parent div - not the browser window...
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LVL 2

Author Comment

by:JamesNewton
ID: 10642244
Cool! The zindex on the text had to be -1 rather than 1 but it works fine, and thank you!
0
 
LVL 31

Expert Comment

by:seanpowell
ID: 10642251
You're welcome - and have a nice weekend :-)
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