Implementing CSS styles to Iframe content

I have written the following code snippet to display an iframe:

<iframe scrolling='no' frameborder='1' id='fblike' src='http://www.facebook.com/plugins/like.php?href=http%3A%2F%2Fwww.XYZ.com%2F&amp;send=false&amp;layout=standard&amp;width=450&amp;show_faces=true&amp;font&amp;colorscheme=light&amp;action=like&amp;height=50'></iframe>

$('#fblike').contents().find('.pluginButton').css({'background','#FF8000'});

In addition, I have also directly applied CSS with the following style:

.pluginButton {
    background: none repeat scroll 0 0 #FF8000 !important;
}

However, despite these efforts, the plugin button's background is not changing as desired. To achieve my goal of applying an image to its background instead, how should I proceed?

phpjavascriptjquerycssfacebook-like

Answer №1

It seems like you're trying to add CSS to an iframe that loads a Facebook page.

Unfortunately, it's not possible to directly inject CSS into the contents of an iframe. You can check out this detailed answer on Stack Overflow for more information: Can I apply CSS to the elements within an iframe?

No, you cannot inject CSS from outside the iframe as it operates in its own isolated environment. If the domains match, Javascript can be used to communicate between the parent and child frames and potentially inject CSS into the child frame.

If the iframe contains content from a different domain, there are limitations on what can be done. The parent page can control the visibility and size of the frame, but it cannot directly alter how the frame content is styled or rendered.

For more insights, here's another explanation on applying CSS to iframes: How to apply CSS to iframe?

Note that cross-domain CSS injection does not work.

There are two aspects to consider - styling the iframe block itself and styling the embedded page within the iframe. The iframe block can be styled conventionally:

<iframe name='iframe1' id="iframe1" src="empty.htm" frameborder="0" border="0" cellspacing="0" style="border-style: none;width: 100%; height: 120px;"></iframe>

To style the content within the iframe, the styles must be included in the child page:

<link type="text/css" rel="Stylesheet" href="Style/simple.css" />

Alternatively, the styles can be loaded from the parent page using Javascript:

var cssLink = document.createElement("link") 
cssLink.href = "style.css"; 
cssLink.rel = "stylesheet";
cssLink.type = "text/css"; 
frames['frame1'].document.body.appendChild(cssLink);

Answer №2

The CSS code appears to be semantically correct, but without access to the HTML it's hard to confirm if the selectors were used properly. It's possible that you are trying to manipulate DOM elements before they are fully loaded. The content of the iframe may not be ready during the document.ready event, so consider using window.load instead to ensure the elements in the iframe are available for scripting.

$(window).load(function) {    
    $('#fblike').contents().find('.pluginButton').css({'background','#FF8000'});    
})

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