When button is clicked, it will set fixed specified html to the target
<button type="button"
data-as='{
"click": {
"class.remove": {
"target": "#b",
"class": "selected"
}
}
}'
>Remove class 'selected' on #b</button>
<ul>
<li id="a" class="selected">A</li>
<li id="b" class="selected">B</li>
<li id="c" class="selected">C</li>
</ul>