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Fix #2644 (KeyError: 0)
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@ -205,7 +205,12 @@ class CSSFlattener(object):
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fnums = self.context.source.fnums
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if size[0] in ('+', '-'):
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# Oh, the warcrimes
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cssdict['font-size'] = fnums[3+int(size)]
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esize = 3 + int(size)
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if esize < 1:
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esize = 1
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if esize > 7:
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esize = 7
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cssdict['font-size'] = fnums[esize]
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else:
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cssdict['font-size'] = fnums[int(size)]
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del node.attrib['size']
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