In the website, are style sheets used to control the presentation of information?

WCAG Reference

10.1.1

On each web page, the tags used for the presentation of information must not be present in the generated source code of the pages. Is this rule respected?
10.1.2

On each web page, the attributes used for the presentation of information must not be present in the generated source code of the pages. Is this rule respected?
10.1.3

On each web page, does the use of spaces meet these conditions?

Spaces are not used to separate letters in a word.
Spaces are not used to simulate tables.
Spaces are not used to simulate columns of text.