How to Fix Iframe Resizing Issues on iOS: A CSS Solution?

Overcoming iframe Resizing Issue on iOS Using CSS

If you encounter the problem of an iframe overflowing its designated frame size on iOS devices, despite working correctly on other browsers, this guide will provide a solution.

In a nutshell, iOS Safari disobeys conventional iframe sizing constraints set with CSS, causing the iframe to resize to fit its contents. To resolve this, we employ a wrapping div that regulates overflow:

<code class="css"><div class="frame_wrapper">
    <iframe class="my_frame">
        // Content
    </iframe>
</div></code>

The following CSS properties are applied to the wrapper div:

<code class="css">.frame_wrapper {
    overflow: auto;
    -webkit-overflow-scrolling: touch;
    /* Additional CSS styles... */
}</code>

The overflow property controls the handling of overflowing content, setting it to auto allows scrollbars to appear as needed. The -webkit-overflow-scrolling property is specific to iOS devices and enables a sleek scrolling experience.

By encapsulating the iframe within this wrapper div, we control the overflow behavior and instruct iOS Safari to obey the desired iframe dimensions. You can inspect the updated example here: http://jsfiddle.net/R3PKB/7/

This solution addresses a longstanding bug in iOS Safari iframe handling, as confirmed in previous Stack Overflow discussions.

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