# Assessment - Structuring planet data

**URL:** <https://discourse.mozilla.org/t/assessment-structuring-planet-data/104403>\
**Category:** Learn\
**Tags:** learning, feedback\
**Created:** [August 27, 2022, 2:59pm UTC](https://discourse.mozilla.org/t/assessment-structuring-planet-data/104403 "2022-08-27T14:59:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vasil.lyubenov](https://avatars.discourse-cdn.com/v4/letter/v/b5e925/32.png) [@vasil.lyubenov](https://discourse.mozilla.org/u/vasil.lyubenov)\
**Post date:** [August 27, 2022, 2:59pm UTC](https://discourse.mozilla.org/t/assessment-structuring-planet-data/104403/1 "2022-08-27T14:59:16Z")

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Hello everyone,

Can someone take a look at my table and give feedback 🙂  
Here is link to the code: [Codepen](https://codepen.io/darktaste/pen/poLXEda)

Thanks!

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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:** [August 28, 2022, 3:26pm UTC](https://discourse.mozilla.org/t/assessment-structuring-planet-data/104403/2 "2022-08-28T15:26:18Z")

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Hi @vasil.lyubenov and welcome to the community 👋

Great work on this exercise. 👍

Here are some possible improvements:

- Your page is missing the `<!DOCTYPE html>` on the first line.
- When defining `<col>`s in `<colgroup>` we need to mention all columns. You should use `<col span="9">` as last line there.
- On Neptune you used `<tf>` instead of `<tr>`.
- “Dwarf planets” is only used on a single row. Therefore its scope should just be `row`.

I hope that helps,  
Michael

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**Author:** ![vasil.lyubenov](https://avatars.discourse-cdn.com/v4/letter/v/b5e925/32.png) [@vasil.lyubenov](https://discourse.mozilla.org/u/vasil.lyubenov)\
**Post date:** [August 28, 2022, 3:54pm UTC](https://discourse.mozilla.org/t/assessment-structuring-planet-data/104403/3 "2022-08-28T15:54:49Z")

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Thank you very much!  
It helps! 😄

I kept getting warning in codepen that I don’t need the `<!DOCTYPE html>` there and that’s why it is missing. I’ll fix everything else.

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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:** [August 28, 2022, 4:59pm UTC](https://discourse.mozilla.org/t/assessment-structuring-planet-data/104403/4 "2022-08-28T16:59:37Z")

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Yeah, you’re right.  
I just wanted to make sure the line doesn’t get missed in a real project. 😁