Multiple :host(-context) pseudos in same compound. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS getComputedStyle(host).color is "rgb(0, 128, 0)" PASS getComputedStyle(host, '::before').color is "rgb(0, 128, 0)" PASS getComputedStyle(host).color is "rgb(0, 128, 0)" PASS getComputedStyle(host, '::before').color is "rgb(0, 128, 0)" PASS getComputedStyle(host).color is "rgb(0, 128, 0)" PASS getComputedStyle(host, '::before').color is "rgb(0, 128, 0)" PASS getComputedStyle(host).color is "rgb(0, 128, 0)" PASS getComputedStyle(host, '::before').color is "rgb(0, 128, 0)" PASS getComputedStyle(host).color is "rgb(0, 128, 0)" PASS getComputedStyle(host, '::before').color is "rgb(0, 128, 0)" PASS successfullyParsed is true TEST COMPLETE Should be green