Based on the provided HTML code, it is difficult to determine the exact purpose or content of the website. The HTML code mainly consists of CSS styling for container sizes, widths, and heights. It also includes some SVG elements and media queries for responsiveness on different screen sizes.
In summary, based solely on the given information, it can be concluded that the website focuses on responsive design using media queries and SVG elements. However, further information or analysis would be required to accurately summarize what the site is about.
