The test verifies CSS.setStyleTexts for view-transition pseudos.
==== Initial opacity ====
1
==== Style sheet text ====
#target {
width: 100px;
height: 100px;
background-color: blue;
view-transition-name: target;
}
::view-transition-group(root),
::view-transition-group(target) {
animation-duration: 300s;
}
::view-transition-group(target) {
opacity: 0.75;
}
==== Modified: expect 0.75 ====
0.75