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amp-dynamic-css-classes
Description
Adds several dynamic CSS class names onto the <body> element.
Required Scripts
<script async custom-element="amp-dynamic-css-classes" src="https://cdn.ampproject.org/v0/amp-dynamic-css-classes-0.1.js"></script>
Behavior
The AMP Dynamic CSS Classes extension adds the following CSS classes
onto the <body> element:
amp-referrer-*
One or more referrer classes will be set, one for each level of
subdomain specificity. For example, www.google.com will add three
classes: amp-referrer-www-google-com, amp-referrer-google-com, and
amp-referrer-com.
We currently have a few special cases:
- When the user came through a Twitter
t.coshort link, we instead usetwitter.comas the referrer. - When the string "Pinterest" is present in the User Agent string and there is no referrer, we use
www.pinterest.comas the referrer.
amp-viewer
The amp-viewer class will be set if the current document is being
displayed inside a Viewer.
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