1.3.2 Meaningful Sequence
Create content that can be presented in different ways ( for example simpler layout ) without losing information or structure.

About

If the content of the webpage required to be read in a certain order to make sense and meaningful sequence; ensure that the webpage is coded / written in a way that indicates this order.

Example:

Before Rectification

image without meaningful sequence order.

This webpage has been written in such a way that the screen readers will read the two headings first and then the content.

After Rectification

image with meaningful sequence order.

This webpage has been correctly coded, so the reading order will be more logical and each heading follows its relative content