enabled
.....

- [ ] unchecked item 1
- [ ] unchecked item 2
- [ ] unchecked item 3
- [x] checked item 4

......

<ul class="contains-task-list">
<li class="task-list-item"><input class="task-list-item-checkbox" type="checkbox"> unchecked item 1</li>
<li class="task-list-item"><input class="task-list-item-checkbox" type="checkbox"> unchecked item 2</li>
<li class="task-list-item"><input class="task-list-item-checkbox" type="checkbox"> unchecked item 3</li>
<li class="task-list-item"><input class="task-list-item-checkbox" type="checkbox" checked=""> checked item 4</li>
</ul>