This is good practice. The entire website uses clear, predictable headings to organize its content. This follows the understandable principle by ensuring that the operation and information of the user interface are not beyond the user's comprehension.

This is bad practice. When I click on the food or drink option, it turns out to be in pdf format. This means that it may be invisible to screen readers whereas the content should be robust enough to be interpreted by assistive technologies like text-t-speech software.

This is good practice. This is because the principle is understandable. The term "RESERVE" is a simple, direct, and predictable label. It follows the principle that the operation of the user interface must be understandable to all users. By using this term, the site ensures the content is not beyond the users' understanding.

This is good practice. It indicates the operable principle. The site uses clear focus indicators, which is essential for users with motor impairments who navigate via keyboard rather than a mouse.