Jquery Child Filters
Child filters allow you to refine the selection by looking at the relationship that the element has with its parent elements.
Here are a few examples of how you may use visibility filters
|Matches elements at index, even or odd increments, or who match an equation (e.g. 3n+1)|
|:first-child||Matches elements who are the first child of their parent|
|:last-child||Matches elements who are the last child of their parent|
|:only-child||Matches elements who are the only child of their parent|
You can actually give nth-child an equation of the form xn+m and m is option obviously. For example, you can say 2n for every second one or you can say 3n+1 and then n will start counting at 0. It will count 0, 1, 2 and so on.
Then this equation will be calculated and then that will be the index of the element that gets selected.
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