Instructions: select a few (or all) characters from the red words "Select This Text". Select them with mouse dragging (leftwardedly or rightwardedly) or text-highlighting them with Shift and keyboard arrows when keyboard navigation (also called caret browsing) is enabled.

Reminder: you can select a whole word by double-clicking on it. You can select a whole line by triple-clicking anywhere inside it.

Test passes if the red glyphs of "Select This Text" become purple on a yellow background color when selecting them and then if such selected purple glyphs become yellow on a green background color when the focus switches outside the black-bordered rectangle.

This test requires a browser with capability to embed an HTML document thanks to the HTML <object> element.