My question pertains to iframes - I am looking to apply styling to the contents of an iframe using only CSS within the srcdoc attribute.
<iframe name="myFrame" srcdoc="<span>Hi</span>"> </iframe>
Is it feasible to style the span element inside the srcdoc attribute without resorting to inline styles, and instead use a stylesheet?
If this is not possible, would the best approach be to include all HTML coding within the srcdoc attribute in order to achieve the desired styling?
The appearance of an iframe is completely separate from the main page's CSS styles, making it impossible to externally manipulate its design.
As for the srcdoc attribute, I'm not quite sure what you're asking. According to MDN, this attribute is typically used in conjunction with the sandbox attribute.
If you're looking to update attributes using Javascript, you can create a function that dynamically changes the attribute value instead of adding it inline in your code. Here's a quick example:
document.getElementsByTagName("iframe")[0].setAttribute("srcdoc", "demoValue");
To modify the style of an inner span element, simply assign it an id and define a CSS rule for it. This way, you can easily manipulate its appearance using both Javascript and CSS.
Note that if the iframe is from a different domain, you won't be able to make client-side modifications. In such cases, you'll need to retrieve the content server-side using PHP and then display it on your domain.
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