2.1.148 [HTML5:2014] Section 10.3.6 Quotes
V0337: No quote values are defined in the default styles
The specification states:
10.3.6 Quotes ... User agents are expected to use either the block below (which will be regularly updated) or to automatically generate their own copy directly from the source material. ...
All document modes (All versions)
No quote values are defined in the default styles.