Grammar fix about negative nth-child arguments.
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@ -446,7 +446,7 @@ To match every 2nd element starting at element 2 you'd instead use this:
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As mentioned the `+2` in the above example is the initial offset. This is
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As mentioned the `+2` in the above example is the initial offset. This is
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however _only_ the case if the second number is positive. That means that for
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however _only_ the case if the second number is positive. That means that for
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`:nth-child(2n-2)` the offset is _not_ `-2`. When using a negative offset the
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`:nth-child(2n-2)` the offset is _not_ `-2`. When using a negative offset the
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actual offset has to first be calculated. When using an argument in the form of
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actual offset first has to be calculated. When using an argument in the form of
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`An-B` we can calculate the actual offset as following:
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`An-B` we can calculate the actual offset as following:
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offset = A - (B % A)
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offset = A - (B % A)
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