::placeholder. The ::placeholder pseudo element (or a pseudo class, in some cases, depending on the browser implementation) allows you to style the placeholder text of a form element. As in, the text set with the placeholder attribute: <input type=email placeholder=jane@firefly.com>.
Australian Capital Territories. As of 1996 A.C.T. changed it's name to ACT. It no longer stands for American College Testing since they do so many other things besides just the testing.
The ACT Scoring Scale. An ACT score report includes scores for each of the four subject area tests (English, Mathematics, Reading, and Science) and all associated subscores (which are calculated separately). The first step in calculating a score for a subject area test is to determine the raw score for that test.