Question

CSS div to 100% of page size

Asked by: okanagan

Hi -

I need a div to be 100% of the page height, rather than the browser window height.  Here's my div style:

#lyrMask {
      z-index: 2;  
      visibility: hidden;
      position: absolute;
      left: 0px;
      top: 0px;
      width: 100%;
      height: 200%;
      -moz-opacity: 0.6;
      opacity: .60;
      filter: alpha(opacity=60);
      background-color: #CCC;
}

This is a mask over which I place a "pop-up" for users to make a selection on.  The mask is to prevent them from clicking anything else on the underlying page and to focus their attention on the div placed on top of the mask outlined above.  The problem is that they can simply scroll down the page, and since the mask is only as high as the browser window, they have access to any links below the mask.

Any ideas?

Thanks,

Rod

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Asked On
2007-05-30 at 07:53:54ID22602218
Tags

div

,

page

,

css

,

height

,

size

Topics

Cascading Style Sheets (CSS)

,

JavaScript

,

Miscellaneous Web Development

Participating Experts
3
Points
500
Comments
3

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Answers

 

by: TNamePosted on 2007-05-30 at 08:09:12ID: 19180644

Set all it's ancestor elements' height to 100%, including html and body:

html, body {height:100%;}

#theMasksParent {height:100%;}
and so on...

 

by: adilkhanPosted on 2007-05-30 at 08:12:46ID: 19180677

how about setting up the height of DIV using javaScript.

This Function will return full page height.

function getPageSizeWithScroll(){     if (window.innerHeight && window.scrollMaxY) {// Firefox         yWithScroll = window.innerHeight + window.scrollMaxY;         xWithScroll = window.innerWidth + window.scrollMaxX;     } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac         yWithScroll = document.body.scrollHeight;         xWithScroll = document.body.scrollWidth;     } else { // works in Explorer 6 Strict, Mozilla (not FF) and Safari         yWithScroll = document.body.offsetHeight;         xWithScroll = document.body.offsetWidth;       }     arrayPageSizeWithScroll = new Array(xWithScroll,yWithScroll);     //alert( 'The height is ' + yWithScroll + ' and the width is ' + xWithScroll );     return arrayPageSizeWithScroll;

}

Then use another function with onClick event to set page height up.

function setDivHeight(obj) {
  h = getPageSizeWithScroll(){    
  document.getElementById(obj).style.height = h
}

add this ...

onClick="setDivHeight('DIV NAME HERE')"

also dont forget to remove height Code from CSS.

 

by: SnowFlakePosted on 2009-03-24 at 12:18:02ID: 23972066

any idea why on ie7 i get 4 pixels to many in the result for height returned by getPageSizeWithScroll  ?

SnowFlake

20120131-EE-VQP-002

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