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CSS,ASP.NET: Correctly positioning divs without DOCTYPE

Posted on 2009-03-31
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Last Modified: 2013-11-19
Hello everyone,

I am working on a website that doesn't use DOCTYPE. I am trying to position a div but it doesn't show up correctly unless I put the DOCTYPE instruction on the top of the page markup. I there a way I can make this work without using the DOCTYPE?
P.S: I use tables to position my content.
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Question by:karakav
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16 Comments
 
LVL 4

Expert Comment

by:amazingwolf1
ID: 24026460
Can you post your html code?
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Author Comment

by:karakav
ID: 24026502
Here you are
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Test Page</title>
 
    <script language="javascript" type="text/javascript">
        function showHide() 
        {                
            var theDiv = document.getElementById("mainDiv");     
            if(theDiv.style.visibility == "visible" || theDiv.style.visibility == "")      
            {
                theDiv.style.visibility = "hidden";           
            }
            else                 
            {
                theDiv.style.visibility = "visible";       
            }                               
        }              
    </script>
 
    <style type="text/css">    
        #mainDiv
        {
	        position: fixed;
	        top: 0;
	        left: 0;        	
	        background-color:#666;
	        filter:alpha(opacity=80); 
	        opacity:0.8;         	
	        height: 100%;
	        width: 100%;
	        min-height: 100%; 
	        min-width: 100%;
	        z-index:1;         
        }
        #innerDiv
        {
	        background-color: #ffff99;
	        color: black;
	        width: 50%;
	        text-align: center;
	        vertical-align: middle;
	        position: fixed;
	        bottom: 50%;
	        left: 25%;
	        font-weight:bold;
	        z-index:2; 
        }    
</style>
</head>
<body onload="showHide();">
    <form id="form1" runat="server" onsubmit="showHide();">
        <div id="mainDiv">
            <div id="innerDiv">
                            <asp:Label ID="label1" runat="server" >Please wait ...</asp:Label>
            </div>
        </div>
        <table>
            <tr>
                <td>
                    <asp:Button ID="button1" runat="server" Text="Ici"
                        OnClick="button1_Click" />
                    <asp:DropDownList ID="drop" runat="server" AutoPostBack="True" OnSelectedIndexChanged="drop_SelectedIndexChanged">
                        <asp:ListItem Text="Valor 1" Value="1" Selected="True" />
                        <asp:ListItem Text="Valor 2" Value="2" />
                        <asp:ListItem Text="Valor 3" Value="3" />
                    </asp:DropDownList>
                </td>
            </tr>
        </table>
    </form>
</body>
</html>
 
 
 
 
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Threading;
 
public partial class Default2 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
 
    }
    protected void button1_Click(object sender, EventArgs e)
    {
        Thread.Sleep(2000);
    }
    protected void drop_SelectedIndexChanged(object sender, EventArgs e)
    {
        Thread.Sleep(3000);
    }
}

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Expert Comment

by:amazingwolf1
ID: 24026819
Does this help?
<body onload="showHide();" style="margin-left:5px;margin-top:0px">
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LVL 4

Author Comment

by:karakav
ID: 24026849
No it doesn't.
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Accepted Solution

by:
amazingwolf1 earned 1500 total points
ID: 24026925
Oh, ok, got you. change position: absolute; in the style of mainDiv and innerDiv - then it will work.
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LVL 4

Author Comment

by:karakav
ID: 24027001
It doesn't fit completely the window. Check on the right side.
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LVL 4

Expert Comment

by:amazingwolf1
ID: 24027113
Add this to the style section:

 body {
      margin-left: 0px;
      margin-top: 0px;
      margin-right: 0px;
      margin-bottom: 0px;
}
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LVL 4

Author Comment

by:karakav
ID: 24027531
Sorry for the delay. I can't defiine those values in the Body selector because I may need to define different values depending on the page. I was looking for  a solution that only affect the divs.
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LVL 4

Expert Comment

by:amazingwolf1
ID: 24027558
The div is effected by the size of the body of the page. You can generate the body style programatically. I don't think there is such a solution that ignores the state of the body, since it is your "canvas", sort of speak.

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LVL 4

Author Comment

by:karakav
ID: 24027782
Even like that the div is not covering all the window especially still on the right side.
0
 
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Expert Comment

by:amazingwolf1
ID: 24028546
ok - which browser do you use?
0
 
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Author Comment

by:karakav
ID: 24030632
I use Internet explorer 7. When I put on six, it is even worse because the dropdownlist overlap the div.
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Expert Comment

by:amazingwolf1
ID: 24036730
I have an IE 7.0 and it seems ok...?
Hmmmm... The ghosts start to appear.

I will try and check this on IE 6.0 for you, but it make take me some time. Since IE versions behave differently with HTML, and since DOCTYPE is out of the question, this one will be a bit tricky.
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LVL 4

Author Comment

by:karakav
ID: 24038107
No proble. I will wait. Thanks.
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LVL 4

Expert Comment

by:amazingwolf1
ID: 24040455
Hi
I checked both on IE 7.0 and 6.0 and can't seem to see a probelm...
This is very strange, I am sorry but since I cannot reproduce this I think you should try and play with the code a bit to find what twicks are needed there.

Sorry for the delay, hope you'd find the rest of the solution.
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LVL 4

Author Closing Comment

by:karakav
ID: 31564711
Actually it is not possible, at least to my possibilities, to correctly imitate whot DOCTYPE make the browsers do. For the problem of dropdowlist in IE6 I had to use an iframe to solve that but even though many other problems are coming in. Thanks for your cooperation anyway.
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