File: /var/www/quadcode/frontend/node_modules/csso/test/data/test_atruler/webkit.keyfraymes.0.p
['atruler',
['atkeyword',
['ident', '-webkit-keyframes']],
['atrulerq',
['s', ' '],
['ident', 'pulsate'],
['s', ' ']],
['atrulers',
['ruleset',
['selector',
['simpleselector',
['percentage',
['number', '0']],
['s', ' ']]],
['block',
['declaration',
['property',
['ident', 'opacity']],
['value',
['s', ' '],
['number', '.5']]]]],
['ruleset',
['selector',
['simpleselector',
['percentage',
['number', '50']],
['s', ' ']]],
['block',
['declaration',
['property',
['ident', 'opacity']],
['value',
['s', ' '],
['number', '1']]]]],
['ruleset',
['selector',
['simpleselector',
['percentage',
['number', '100']],
['s', ' ']]],
['block',
['declaration',
['property',
['ident', 'opacity']],
['value',
['s', ' '],
['number', '.5']]]]]]]