Using an External Style Sheet on AMP Pages is not allowed

I'm currently in the process of converting my HTML page into AMP Pages. I recently came across a test url on to validate my AMP pages.

Here's a screenshot for reference: https://i.sstatic.net/wcDLH.png

However, I encountered an issue when trying to use external CSS.

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.98.0/css/materialize.min.css">

Unfortunately, this caused the validation to fail.

Another screenshot for further clarification: https://i.sstatic.net/sXyIl.png

So now I'm wondering how to access the materialize css file as I am using the Materialize UI framework on my website.

While researching, I also found information about including inline CSS within the amp-custom tag.

 <style amp-custom> </style>

The challenge is that the materialize css file is quite lengthy and may break on some mobile browsers, as mentioned here.

If anyone has any insights or ideas on how to tackle this issue, please feel free to share them with me.

htmlcssamp-html

Answer №1

AMP does not allow for the use of external style sheets. Instead, all CSS declarations must be included within the HTML document itself (up to 10,000 lines). This approach helps save time by eliminating additional network requests and preventing rendering delays.

<style amp-custom>
...
</style>

Answer №2

At this time, external CSS is not supported in Accelerated Mobile Pages. However, you are able to use inline CSS which was previously prohibited. This means that you will need to make do with the CSS available.

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