Newbie HTML/CSS, how fix it(size issues)?

Question

I need the menu to be 98% height of the "osnova" block, and the "osnova" block should be exactly the same height as the content inside it.

https://code.sololearn.com/WrQGd1WMs8yE/?ref=app

Answer 1

//Your question have been already answered

https://www.sololearn.com/Discuss/2161595/?ref=app

Answer 2

//You just deleted your post 🤨🤨I can tag other who answered same question before

Answer 3

//KyteZ explain this 98%? what width or height

Answer 4

//Here ,check Now
https://code.sololearn.com/W6Sy535sjaAn/?ref=app

Answer 5

No

Answer 6

Yes, I deleted the post, because there was no correctly answer, and there will be a new post, and there is more chance that they will answer. In this post, I changed the description a bit, and a bit of code, so I created a new post. //Google Translate

Answer 7

98% height

Answer 8

Here, the menu height does not occupy 98% of the "osnova" block.

Answer 9

helpp