Line 13 doesn’t work

Question

In my css in the web code line 13 doesn’t work. Why? Or can it be fixed?

This is my code (SoloLearns code with my button), any code on line 13 doesn’t work for some reason. Look at the CSS
https://code.sololearn.com/W1IRhXGrXSNL/?ref=app

Answer 1

Oh i know what’s the problem now. the previous selector didn’t have a value and semicolumn.

Answer 2

Hello, 😊
Please, show us your code!

Use the search bar!
https://www.sololearn.com/post/10362/?ref=app
Please, read our guidelines:
https://www.sololearn.com/discuss/1316935/?ref=app
An useful code for any new user here!;)
https://code.sololearn.com/WvG0MJq2dQ6y/

Answer 3

https://www.w3schools.com/css/css3_buttons.asp

https://css-tricks.com/how-css-selectors-work/

Answer 4

Yes, becouse of that CSS have class Selectors!
https://www.sololearn.com/learn/CSS/1080/

Answer 5

Korijn
You need to write:

.button { }

Answer 6

You haven't added your code!!
It's not possible to get help without viewing the code!!😊

Answer 7

i’ve added my code, but i don’t really think it helps much.

Answer 8

why, what is the reason? I thought . was for a class and an element such as <button> was without anything.

Answer 9

I added .button and it removes the previous styling.