The key words "MUST" , "MUST NOT" , "REQUIRED" , "SHALL" , "SHALL NOT" , "SHOULD" , "SHOULD NOT" , "RECOMMENDED" , "MAY" , and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 (see [RFC2119] ). However, for readability, these words do not appear in all u…

Conformance: requirements and recommendations previous next contents properties index 3 Conformance: Requirements and Recommendations Contents 3.1 Definitions 3.2 UA Conformance 3.3 Error conditions 3.4 The text/css content type (hide) Note: Several sections of this specification…