I need to add a <style> tag to a page

Question

I need to add a <style> tag to a page

using JavaScript, and we find that if we document.head.appendChild(tag), sometimes these sites will have dynamically-added <style> or <link> tags appearing either later in the <head>, or in the <body>. I'm wondering about changing the location of where we add our <style> to be document.documentElement.appendChild(tag) instead, which puts it outside of the <body> tag as the last child inside the <html> tag. I'm aware this isn't a valid spot for this tag according to HTML's content model (so if that will pose some kind of problem you can foresee I'd love to hear it.) I've checked in browsers, and all browsers IE9+ seem to support CSS in this location. It seems like it should come after all CSS that's present in HTML (since parsing HTML would never result in tags ending up there.) Have you ever seen anybody adding styles between </body> and </html>, or can you think of any reason where this might break something or cause a conflict?

0

07.08.2019

3 ответов

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Thomas

What are these dynamically-added extra elements?

0

08.08.2019

Misan

You are not by chance the provider of jimdo? xD

0

08.08.2019

Banana · Accepted Answer

Banana

If HTML5 says no, then don't do it. Just append to the head, or body if you prefer.

0

08.08.2019

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I need to add a <style> tag to a page

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