2.1.124 [W3C-HTML52] Section 10.5.3. The details and summary elements

  • Article

V0399: The details element is not supported

The specification states:

 4.11.1 The details element
     ...
     The details element represents a disclosure widget from which the user can obtain 
     additional information or controls.
  
 10.5.3 The details element
     ...
     The details element is expected to render as a block box. ...

EdgeHTML Mode

The details element is not supported.