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Update spec details for http-equiv per #369 #8993

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Update spec details for http-equiv per #369 #8993

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6 changes: 4 additions & 2 deletions spec/amp-html-format.md
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Expand Up @@ -16,6 +16,8 @@ limitations under the License.

# AMP HTML ⚡

[TOC]

AMP HTML is a subset of HTML for authoring content pages such as news articles in a way that guarantees certain baseline performance characteristics.

Being a subset of HTML, it puts some restrictions on the full set of tags and functionality available through HTML but it does not require the development of new rendering engines: existing user agents can render AMP HTML just like all other HTML.
Expand Down Expand Up @@ -190,7 +192,7 @@ HTML tags can be used unchanged in AMP HTML. Certain tags have equivalent custom
</tr>
<tr>
<td width="30%">meta</td>
<td>The <code>http-equiv</code> attribute is banned. Otherwise allowed.</td>
<td>The <code>http-equiv</code> attribute may be used for specific allowable values; see the <a href="https://github.com/ampproject/amphtml/blob/master/validator/validator-main.protoascii">AMP validator specification</a> for details.</td>
</tr>
<tr>
<td width="30%"><code><a name="ancr"></a>a</code></td>
Expand Down Expand Up @@ -285,7 +287,7 @@ In the following examples `<property>` needs to be in the whitelist above.

`overflow` (and `overflow-y`, `overflow-x`) may not be styled as “auto” or “scroll”. No user defined element in an AMP document may have a scrollbar.

##### Maximum size
#### Maximum size
It is a validation error if the author stylesheet is larger than 50,000 bytes.

### Custom fonts
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