How to resize iframe when parent window resizes

Question

I don\'t think this is not another \"resize iframe according to content height\" question.

I actually want to resize the iframe dynamically according to a resize of the

Answer 1

You can set the width and height of the iframe element to be percentage-based. Here's an example where width is 75% and will dynamically change when you increase/decrease the width of your browser window: http://jsfiddle.net/fallen888/pkjEB/

Answer 2

This worked for me:

div#content iframe {width: 100%} 

Answer 3

I created a new jsfiddle that gets you what you need in raw css. I didn't test cross-browser extensively, particularly in IE. I would anticipate support in IE8 and 9, but would be hesitant to say that 7 would work without hiccups.

The relevant changes:

    /* This contains the iframe and sets a new stacking context */
div#content {
    position: fixed;
    top: 80px;
    left: 40px;
    bottom: 25px;
    min-width: 200px;
    background: black; 
        /* DEBUG: If the iframe doesn't cover the whole space,
           it'll show through as black. */
}

    /* Position the iframe inside the new stacking context
       to take up the whole space */
div#content iframe {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
}

Answer 4

I think this does what you're after.

First I wrapped the iframe in a div, and set the iframe's width and height to be 100%.

HTML

<div id="frameContainer"><iframe src="http://www.apple.com" name="frame2" id="frame2" frameborder="0" marginwidth="0" marginheight="0" scrolling="auto" onload="" allowtransparency="false"></iframe></div>

CSS

#frameContainer {

    margin: 40px;
    position: fixed;
    top: 80px;
    left: 0px;
    width: 200px;
    bottom: 25px;
    min-width: 200px;

}

iframe#frame2 { width: 100%; height:100% }

Then I added the following jQuery code.

jsFiddle

$(function() {
    var widthRatio = $('#frameContainer').width() / $(window).width();
    $(window).resize(function() {
        $('#frameContainer').css({width: $(window).width() * widthRatio});
    }); 
});