7. XHTML Attribute Quotes

In XHTML, all attribute values are required to be enclosed by quotes. Either 'single' or "double" quotes may be used.

Example 7.1 Incorrect Attribute Quoting

<span class=copy-1></span>

Example 7.2 Correct Single Attribute Quotes

<span class='copy-1'></span>

Example 7.3 Correct Double Attribute Quotes

<span class="copy-1"></span>