This rule aims to batch multiple CSS properties changes at once
To limit the number of repaint/reflow, it is advised to batch style modifications by adding a class containing all style changes that will generate a unique reflow
Examples of incorrect code for this rule:
<script>
element.style.height = "800px";
element.style.width = "600px";
element.style.color = "red";
</script>Examples of correct code for this rule:
<style>
.in-error {
color: red;
height: 800px;
width: 800px;
}
</style>
<script>
element.addClass('in-error');
</script>