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Overlaying a Semi-Transparent Div Over a YouTube iFrame
Embedded YouTube videos in an iFrame present a unique challenge when attempting to overlay a semi-transparent div. Unlike the previous method of using a element with wmode="transparent" for an object embed, the iFrame implementation требует другой подход.
Understanding the Issue
The z-index of an iFrame embedded video is typically higher than all other elements on the page. This means that any div placed over it will be hidden.
Solution: Appending "wmode=opaque" to the iFrame URL
The solution lies in modifying the YouTube iFrame URL by appending a GET parameter wmode=opaque. This parameter specifies that the video should be rendered in a mode that allows other elements to overlay it.
Usage
To implement this, simply add wmode=opaque as the first parameter in the iFrame source URL. For example:
<iframe class="youtube-player" type="text/html" width="520" height="330" src="https://www.youtube.com/embed/NWHfY_lvKIQ?wmode=opaque" frameborder="0"></iframe>
Note:
By following these steps, you can successfully overlay a semi-transparent div over an embedded YouTube iFrame video.
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