[addon-docs] Links in headings have smaller font-size than text

[ajkl2533]

Describe the bug
When using a link in heading in the MDX file than the link and text have different font-size. I suspect that the issue is coming from here where is hardcoded the 14px font-size for links, instead, there should be probable inherited because the size of the link should be probably inherited from an element in which is placed.

To Reproduce
Create MDX file with:

# [Link](#test) Text

## [Link](#test) Text

Expected behavior
Links should have the same font size as the text in the heading

Screenshots

Code snippets

# [Link](#test) Text

## [Link](#test) Text

System:

  System:
    OS: macOS 10.15.4
    CPU: (12) x64 Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
  Binaries:
    Node: 12.13.1 - ~/.nvm/versions/node/v12.13.1/bin/node
    Yarn: 1.22.4 - /usr/local/bin/yarn
    npm: 6.14.5 - ~/Documents/PROJECTS/ambrosia-design-system/node_modules/.bin/npm
  Browsers:
    Chrome: 83.0.4103.116
    Safari: 13.1
  npmPackages:
    @storybook/addon-actions: ^6.0.0-beta.38 => 6.0.0-beta.39 
    @storybook/addon-docs: ^6.0.0-beta.38 => 6.0.0-beta.39 
    @storybook/addon-storyshots: ^6.0.0-beta.38 => 6.0.0-beta.39 
    @storybook/addon-storyshots-puppeteer: ^6.0.0-beta.38 => 6.0.0-beta.39 
    @storybook/react: ^6.0.0-beta.38 => 6.0.0-beta.39 
    @storybook/theming: ^6.0.0-beta.38 => 6.0.0-beta.39 

[stale]

Hi everyone! Seems like there hasn't been much going on in this issue lately. If there are still questions, comments, or bugs, please feel free to continue the discussion. Unfortunately, we don't have time to get to every issue. We are always open to contributions so please send us a pull request if you would like to help. Inactive issues will be closed after 30 days. Thanks!

[ajkl2533]

@shilman Any update on this?

[shilman]

Zoinks!! I just released https://github.com/storybookjs/storybook/releases/tag/v6.0.0-rc.24 containing PR #11770 that references this issue. Upgrade today to try it out!

You can find this prerelease on the @next NPM tag.