DOM order (logical-order)
The DOM order matches the visual order.
Incorrect aria-flowto:
In this example the aria-flowto attribute is used in a way that programmatically creates an illogical/unnatural reading order:
First Section
Second Section
Third Section
The (DOM/programmatic) structure of the above example looks like this:
<div id="first" aria-flowto="third">
First Section
</div>
<div id="second"> Second Section
</div>
<div id="third"> Third Section
</div>