Geek asks and answers

Display overlay to cover the entire page

I have a web application that loads within iframe. I need to display an overlay div to cover the whole page. The problem is that the overlay is currently displayed only in the area iframeand does not cover the entire page, (Our application (a child application) is part of the set of applications loaded in iframe)

+5
source share
2 answers

You can do something like this

<div id="overlay"></div>

CSS

#overlay
{

  position:fixed;
  top:0;
  left:0;
  bottom:0;
  right:0;
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  background: #000000;
  opacity: .3;
  filter: alpha(opacity=30);
  -moz-opacity: .3;
   z-index: 101;
}

Example

+3
source

Try something like:

<!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" lang="EN">
<head>
<style type="text/css">
html 
{
 overflow: auto;
}

html, body, div, iframe 
{
 margin: 0px; 
 padding: 0px; 
 height: 100%; 
 border: none;
}

iframe 
{
 display: block; 
 width: 100%; 
 border: none; 
 overflow-y: auto; 
 overflow-x: hidden;
}
</style>
</head>
<body>

<iframe id="tree" name="myiframe" src="http://www.your_page.com/" frameborder="0" marginheight="0" marginwidth="0" width="100%" height="100%" scrolling="auto"></iframe>

</body>
</html>

Or you can use JavaScript like:

<script type="Text/JavaScript" language="JavaScript">
<!--
function resize_iframe()
{
    var height=window.innerWidth;//Firefox
    if (document.body.clientHeight)
    {
        height=document.body.clientHeight;//IE
    }
    //resize the iframe according to the size of the
    //window (all these should be on the same line)
    document.getElementById("cam").style.height=parseInt(height-
    document.getElementById("cam").offsetTop-8)+"px";
}

// this will resize the iframe every
// time you change the size of the window.
window.onresize=resize_iframe; 

//Instead of using this you can use: 
//  <BODY onresize="resize_iframe()">

</script>
</head>
<body>
<iframe id="cam" width="100%" scrolling="yes" src="http://www.your_page.com" onload="resize_iframe()">
</iframe>
</body>

Hope this helps.

0
source

More articles:


All Articles