Opera Presto offers support for CSS At-rules, as described in the following data table. At-rules start with an at-keyword, an "@" character, and followed immediately by an identifier (for example, @import, @page). An at-rule consists of everything up to and including the next semicolon (;) or the next block, whichever comes first.
The following table defines which CSS AT-rules are supported by Opera Presto.
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