To impress clients, you should always go the extra mile and improve the codebase for long-term sustainability. For example, make sure that all links are functioning correctly. Also, rework the CSS to make it more efficient by consolidating CSS selectors and properties, organizing them to follow the semantic structure of the HTML elements, and including comments before each element or section of the page.

AS A marketing agency I WANT a codebase that follows accessibility standards SO THAT our own site is optimized for search engines

GIVEN a webpage meets accessibility standards WHEN I view the source code THEN I find semantic HTML elements WHEN I view the structure of the HTML elements THEN I find that the elements follow a logical structure independent of styling and positioning WHEN I view the image elements THEN I find accessible alt attributes WHEN I view the heading attributes THEN they fall in sequential order WHEN I view the title element THEN I find a concise, descriptive title