# Review wanted for assessment structuring planet data

**URL:** <https://discourse.mozilla.org/t/review-wanted-for-assessment-structuring-planet-data/99907>\
**Category:** Learn\
**Tags:** participation, learning\
**Created:** [July 13, 2022, 4:29pm UTC](https://discourse.mozilla.org/t/review-wanted-for-assessment-structuring-planet-data/99907 "2022-07-13T16:29:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ujjyan\_Sanyal](https://avatars.discourse-cdn.com/v4/letter/u/ecb155/32.png) [@Ujjyan\_Sanyal](https://discourse.mozilla.org/u/Ujjyan_Sanyal)\
**Post date:** [July 13, 2022, 4:29pm UTC](https://discourse.mozilla.org/t/review-wanted-for-assessment-structuring-planet-data/99907/1 "2022-07-13T16:29:07Z")

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Here’s my code.

https://codepen.io/ujjyan/embed/preview/QWmKPjY?default-tabs=html%2Cresult&height=300&host=https%3A%2F%2Fcodepen.io&slug-hash=QWmKPjY

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**Author:** ![mikoMK](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/mikomk/32/50456_2.png) [@mikoMK](https://discourse.mozilla.org/u/mikoMK)\
**Post date:** [July 17, 2022, 8:39am UTC](https://discourse.mozilla.org/t/review-wanted-for-assessment-structuring-planet-data/99907/2 "2022-07-17T08:39:46Z")

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Hi @Ujjyan_Sanyal

Well done! 🎉

I only see some small improvements:

- When using `<colgroup>` you need to define all the columns. You need to add `<col span="9">` at the end. You can also see how I used the `span` attribute to avoid writing `<col>` nine times.
- The “Notes” header doesn’t need a `colspan`.
- “Venus” is missing an empty `<td></td>` element at the end.

I recommend using the W3C HTML validator to check your code. Sometimes the errors are a bit hard to understand, but you can always ask us if you don’t know what it means. 🙂

Have a nice day,  
Michael

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**Author:** ![Ujjyan\_Sanyal](https://avatars.discourse-cdn.com/v4/letter/u/ecb155/32.png) [@Ujjyan\_Sanyal](https://discourse.mozilla.org/u/Ujjyan_Sanyal)\
**Post date:** [July 18, 2022, 9:15am UTC](https://discourse.mozilla.org/t/review-wanted-for-assessment-structuring-planet-data/99907/3 "2022-07-18T09:15:44Z")

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Thanks @mikoMK for your constructive review. Previously I was getting many column errors when using the W3C HTML validator. Now all the errors are fixed. Thanks again.

https://codepen.io/ujjyan/embed/preview/QWmKPjY?default-tabs=html%2Cresult&height=300&host=https%3A%2F%2Fcodepen.io&slug-hash=QWmKPjY

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**Author:** ![mikoMK](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/mikomk/32/50456_2.png) [@mikoMK](https://discourse.mozilla.org/u/mikoMK)\
**Post date:** [July 18, 2022, 9:24am UTC](https://discourse.mozilla.org/t/review-wanted-for-assessment-structuring-planet-data/99907/4 "2022-07-18T09:24:34Z")

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Excellent improvements. Now it’s perfect! 👍