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How to set the iframe height & width to 100%

I am in need of doing the following:

  1. I have a header content which is 70px and an iframe with a wrapper. The height & width of the iframe has to be set to 100% without scroll, except for the scroll that comes for the body when the content is loaded and the size of the content is more.
  2. The content of the iframe is another HTML page from the same domain. The iframe also needs to scale according to the responsive HTML page.

Can any one help?

Things I cannot use:

Position:Fixed;(mainly due to a script that i am using for the sideslidebars

<!doctype html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Bus Management System</title>
    <!-- Viewport meta tag to prevent iPhone from scaling our page -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">


     <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script>

     $(function(){

            var iFrames = $('iframe');

            function iResize() {

                for (var i = 0, j = iFrames.length; i < j; i++) {
                  iFrames[i].style.height = iFrames[i].contentWindow.document.body.offsetHeight + 'px';}
                }

                if ($.browser.safari || $.browser.opera) { 

                   iFrames.load(function(){
                       setTimeout(iResize, 0);
                   });

                   for (var i = 0, j = iFrames.length; i < j; i++) {
                        var iSource = iFrames[i].src;
                        iFrames[i].src = '';
                        iFrames[i].src = iSource;
                   }

                } else {
                   iFrames.load(function() { 
                       this.style.height = this.contentWindow.document.body.offsetHeight + 'px';
                   });
                }

            });
</script>


  </head>

    <style type="text/css" media="all">
        html, body, iframe {width:100%; height:100%;box-sizing:border-box; margin:0; padding:0; border:0;}
        body {border:4px solid green;}
        iframe {border:6px solid red;width:100%; height:100%;display:block;}
        #wrapper {border:2px solid blue; width:100%; height:100%;}

    </style>
    <body>
        <div style="height:50px; background-color:#000; color:#fff;">Header</div>

            <iframe src="http://www.google.com" style="width:100%; height:100%;" onLoad="calcHeight();"></iframe>

    </body>
</html>   
like image 329
deepak Avatar asked Apr 12 '14 06:04

deepak


People also ask

How do I make my iframe height 100%?

given the iframe is directly under body. If the iframe has a parent between itself and the body, the iframe will still get the height of its parent. One must explicitly set the height of every parent to 100% as well (if that's what one wants).

How do I set the width and height of an iframe?

The height & width of the iframe has to be set to 100% without scroll, except for the scroll that comes for the body when the content is loaded and the size of the content is more. The content of the iframe is another HTML page from the same domain. The iframe also needs to scale according to the responsive HTML page.

What is the default height of iframe?

The height attribute specifies the height of an <iframe> , in pixels. The default height is 150 pixels.

How do I change the size of an iframe dynamically?

Using the window. postMessage() method, we can safely communicate between the iframe and the parent window. That way, we can send a height value from the iframe to the parent window. Then, in the parent window, we can set a simple script to dynamically update the height of the iframe.


1 Answers

CSS only solution for 100% width and height and responsive

HTML

<div class="container">
    <div class="h_iframe">
        <iframe  src="//www.youtube.com/embed/9KunP3sZyI0" frameborder="0" allowfullscreen></iframe>
    </div>
</div>

CSS

html,body {
    height:100%;
}
.h_iframe iframe {
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
}

DEMO

without position : absolute

css

html,body        {height:100%;}
.h_iframe iframe {width:100%; height:100%;}
.h_iframe {
    height: 100%;
}

DEMO 2

And finally here is the crack

Modern browsers now support the:

width: calc(100% - 70px);

CSS

html,body {
    height:100%; 
    margin-top:0; 
    margin-bottom:0;
}
.h_iframe iframe {
    width:100%;
    height:calc(100% - 75px);
}
.h_iframe {
    height: 100%;
}
.element{
    width:100%;
    height:70px;
    background:red;
}

HTML

<div class="container">
    <div class="element">here it goes</div>
    <div class="h_iframe">
        <iframe  src="//www.youtube.com/embed/9KunP3sZyI0" frameborder="0" allowfullscreen></iframe>
    </div>
</div>

Final DEMO

like image 75
4dgaurav Avatar answered Oct 01 '22 04:10

4dgaurav