Based on the provided HTML text, it is difficult to determine the exact content or purpose of the website. However, we can gather some information regarding its structure and design.
The website seems to have a responsive layout that adjusts based on the device's screen size. There are various media queries for different screen widths such as max-width 390px, min-width 768px, and max-width 1023px.
There are also mentions of important elements like homepage, online library (possibly referring to "owlit online bibliothek"), and footer sections indicated by classes like "thrvfooter" and "tcbplaintext". The importance given to certain elements like headings (h1-h5) suggests they contain significant content.
Additionally, there are references to button links labeled as "tcbbuttonlink".
Overall, without more context or additional information from the cleaned HTML source code, it is challenging to provide a detailed summary or discern the main topic or purpose of this website accurately.
