Question

How do I convert the pixel size definitions to Percent of Screen definitions

Asked by: winbiz

Hi everyone,

I have defined position and size of the objects on my html pages in terms of pixels and designed the pages to fill the screen size 800 X 600 pixels. (Example of login page below..) Can I define the position and size of my objects in terms of percentage of the size of the users desktop regardless of the resolution that the user has chosen?

Even the background image that I use (without defining it's size) still does not take up the full scren when my desktop resolution is > 800 x 600. Can some one please edit my below code relating to the background image and the first two fields (email/user - label and email/user input fields) as an example to show me how to accomplish what I require.

This would be really helpful!.

Thanks again in advance everyon.

winbiz

---------------------------------------------------------------


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<HTML>


<link rel="stylesheet" type="text/css" href="http://localhost/owc/MyStyleSheet.css"/>

<TITLE>Login</TITLE>

<head>

<style type="text/css">
body {background-image: url('space1.jpg'); background-repeat: no-repeat; background-attachment: fixed;}
</style>

</head>

<BODY>


<FORM METHOD=POST ACTION="LoginFormA.php">
<img src="OneWorldLogo1.JPG" style="position: absolute; top: 10px; left: 510px; width: 245px; height: 40px">

<label for="Email" style="color: yellow; position: absolute; top: 60px; left: 510px; border: ridge; width: 80px; text-align: center;">
Email/User:
</label>

<input type="text" name="Email" style="color: black; position: absolute; top: 60px; left: 600px; border: ridge" maxlength="40" size="22">
</input>

<BR>
</FORM>
</BODY>
</HTML>

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Asked On: 2006-01-10 at 04:50:00ID21690684
Tags: percent
,; size
,; convert
,; owc
,; pixel
Topic: Hypertext Markup Language (HTML)
Participating Experts: 4
Points: 500
Comments: 7

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Answers

by: mplungjanPosted on 2006-01-10 at 05:44:57ID: 15660146

How does your CSS look?

Also start by removing fixed and absolute and use a background image that can repeat

Have a look here:
http://www.w3.org/Style/Examples/007/center.html
http://www.maxdesign.com.au/presentation/center/

by: vsemyonovPosted on 2006-01-10 at 06:34:39ID: 15660658

You can use table for HTML formatting. Your example may look like this:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
      
<link rel="stylesheet" type="text/css" href="http://localhost/owc/MyStyleSheet.css"/>

<TITLE>Login</TITLE>

<style>

</style>

<head>

<script type="text/javascript">
if(top.location.href!=location.href){
top.location.href = location.href;
}
</script>
</head>

<body>
<FORM METHOD=POST ACTION="LoginFormA.php">
<table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0">
      <tr>
            <td align="center" valign="center">
                  <table width="245" height="150" border="0" cellpadding="0" cellspacing="0">
                        <tr>
                              <td nowrap="nowrap" colspan="3" width="245" height="40"><img src="OneWorldLogo1.JPG" width="245" height="40"></td>
                        </tr>
                        <tr>
                              <td nowrap="nowrap" height="22"><label for="Email" style="color: yellow; border: ridge; width: 80px; text-align: center;">Email/User:</label></td>
                              <td nowrap="nowrap" height="22"> </td>
                              <td nowrap="nowrap" height="22"><input type="text" name="Email" style="color: black; border: ridge" maxlength="40" size="22" /></td>
                        </tr>
                        <tr>
                              <td nowrap="nowrap" height="22"><label for="Password" style="color: yellow; border: ridge; width: 80px; text-align: center;">Password:</label></td>
                              <td nowrap="nowrap" height="22"> </td>
                              <td nowrap="nowrap" height="22"><input type="Password" name="Password" style="color: black; border: ridge;" maxlength="40" size="22" /></td>
                        </tr>
                        <tr>
                              <td nowrap="nowrap" height="22"><label for="Role" style="color: yellow; border: ridge; width: 80px; text-align: center;">Role:</label></td>
                              <td nowrap="nowrap" height="22"> </td>
                              <td nowrap="nowrap" height="22">
                              <select name="Role" class="hsoL1132" style="color: black;background-color: white; width: 160px;">
                       </select>
                               </td>
                        </tr>
                        <tr>
                              <td colspan="3" nowrap="nowrap" align="center" height="22">
                                    <input type=SUBMIT VALUE="Log In" style= "width: 122px" />
                             <input type=SUBMIT VALUE="Log Out" style="width: 122px" />
                              </td>
                        </tr>
                  </table>
            </td>
      </tr>
</table>
</form>

</body>
</html>

by: vsemyonovPosted on 2006-01-10 at 06:38:44ID: 15660710

Also as mentioned above you can use background image that can be repeated, I mean image picture, that can be repeated. And modify your CSS in the following way: background-repeat: [repeat | repeat-x | repeat-y] depending on repeat style you are looking for

by: samscudderPosted on 2006-01-10 at 09:11:09ID: 15662504

Just calculate the size as a percentage... For example, instead of "top: 10px;" use "top: 2.1%;"

To calculate the percentages, take the size you are normally using (800 x 600 is actually around 780 x 470 with the scroll and tool bars), then take the value (10 px) and do 10 / 470 (0.021 or 2.1%).

As long as you remember that the text will not resize along with the table, here's how it could go:


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<HTML>


<link rel="stylesheet" type="text/css" href="http://localhost/owc/MyStyleSheet.css"/>

<TITLE>Login</TITLE>

<head>

<style type="text/css">
body {background-image: url('space1.jpg'); background-repeat: no-repeat; background-attachment: fixed;}
</style>

</head>

<BODY>


<FORM METHOD=POST ACTION="LoginFormA.php">
<img src="OneWorldLogo1.JPG" style="position: absolute; top: 2.1%; left: 63.7%; width: 245px; height: 40px">

<label for="Email" style="color: yellow; position: absolute; top: 12.7%; left: 63.7%; border: ridge; width: 80px; text-align: center;">
Email/User:
</label>

<input type="text" name="Email" style="color: black; position: absolute; top: 12.7%; left: 75%; border: ridge" maxlength="40" size="22">
</input>

<BR>
</FORM>
</BODY>
</HTML>

Hope this helps!

by: ljo8877Posted on 2006-01-10 at 12:27:03ID: 15664664

You need to be careful with percentage, because they are always a percentage of something that is never the screen size. So calculating what percent 12px is of 600px and using that percent is not always useful depending on your design. It is necessary to calculate the percent based on the size of the containing block.

Dimensions and positioning percent is always a percent of the size of the containing block element. You could end up with 2.7% of 50px when you intended 24%.

Font percents are relative to the font size that would be in effect if you didn't specify a new size. This could leave you with 90% of 90% of 90%, which is far smaller than intended. Or 120% of 120%, which will be larger than intended.

I have seen some efforts to multiply the percent a pixile value is of 800 x 600 (always using the height 600, but doesn't matter) by the new screen resolution to change the sizes. Example:

var newTop = 12 * window.screen.height / 600;
document.getElementById("id").style.top = newTop + 'px';

or

document.getElementById("id").style.fontSize = newTop + 'px';

This requires JavaScript to be enabled, but may help.

20120131-EE-VQP-002

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Question

How do I convert the pixel size definitions to Percent of Screen definitions

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percent

size

convert

owc

pixel

Hypertext Markup Language (HTML)

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