Core Attributes
===============
W3C Reference: http://www.w3.org/TR/SVG11/intro.html#TermCoreAttribute

The core attributes are those attributes that can be specified on any SVG element.

W3C Direct Links
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* `id <http://www.w3.org/TR/SVG11/struct.html#IDAttribute>`_
* `xml:base <http://www.w3.org/TR/SVG11/struct.html#XMLBaseAttribute>`_
* `xml:lang <http://www.w3.org/TR/SVG11/struct.html#XMLLangAttribute>`_
* `xml:space <http://www.w3.org/TR/SVG11/struct.html#XMLSpaceAttribute>`_
