Filters are used for filtering html elements. They are attached to the element you want to filter and are defined by a colon, e.g
To select multiple elements, put a comma between each selection criteria.
‘this’ is the element that fired the event.
‘is’ action –> takes selectors and checks to see if they match any of the selectors it was called on, e.g.
The above returns true if the element with ID test matches the
enclose the attribute in square brackets – e.g.: a[href=#] where href is the attribute and # is the value we’re looking for.