How to make linked content tabs work

[xihajun]

Content tabs are linked based on their label, not offset. This means that all tabs with the same label will be activated when a user clicks a content tab regardless of order inside a container.

Does the label means the title of the tab for example in here we have C and C++?
=== "C"

``` c
#include <stdio.h>

int main(void) {
  printf("Hello world!\n");
  return 0;
}
```

=== "C++"

``` c++
#include <iostream>

int main(void) {
  std::cout << "Hello world!" << std::endl;
  return 0;
}
```

Or do we need to set something special? I cannot find an example from the document page.

[squidfunk]

Did you enable content tabs and linked content tabs in mkdocs.yml? These settings must be present:

theme:
  features:
    - content.tabs.link
markdown_extensions:
  - pymdownx.superfences
  - pymdownx.tabbed:
      alternate_style: true 

[xihajun]

Thanks for your reply! Yes, I have them. But I have some additional settings, do you think that would make things different?

theme:
  custom_dir: overrides
  name: material
  features:
    - navigation.instant
    - navigation.tracking
    - navigation.sections
    - navigation.indexes
    - toc.follow
    - content.tabs.link

markdown_extensions:
- pymdownx.superfences:
      custom_fences:
        - name: mermaid
          class: mermaid
          format: !!python/name:pymdownx.superfences.fence_code_format
- pymdownx.tabbed:
    alternate_style: true 

[squidfunk]

I'm not sure what's wrong with your setup. Please provide a self-contained, minimal reproducible example and attach it here as a zip. Otherwise, I'm unable to understand what's going on and what may be wrong. Thank you.

[xihajun]

I think I found the issue now, I have defined features twice and overwrite the previous one with content.tabs.link! Thank you so much for your help!

[squidfunk]

Glad you found the problem! I recommend setting up configuration validation, which helps a lot when writing config!

[xihajun]

Thank you so much for your suggestion! I will have a try!!