rst block with html pre tag in doxygen. 
    <pre>-html-element
    Syntax 
    /// <pre> {rst}
/// .. tip::
/// 
///    If you see a tip around this text it worked!
/// </pre>
Example 
    
.. tip::
If you see a tip around this text it worked!
    TEST WO ISSES DENN? SAPRALOT!!
    
.. info::
Beside the `{rst}`-marker you can also use `{embed:rst}`, `{embed:rst:leading-slashes}`, 
`{embed:rst:leading-asterisk}`, or the directive autodetection feature.