Why did my 'buy now' button disappear after code changes?

Hello, I recently posted a question in regards to making my buy now button smaller on mobile view and getting rid of the large black space between the slide and the image with text below it. The codes that people replied with helped get rid of the space but now my buy now button is gone. I am on the refresh theme

store - permacurl.shop

here are some before and after images, the first is what it looked like before the fixes and the second is where the space was fixed but now the buy now is missing

Hi @austin89s

You ca follow these steps:

  1. First, go to Themes => Edit code

  1. Find the base.css file in the Assets folder and add this code at the end of the file:
@media (max-width: 767px){
.slideshow__media .button--primary {
min-width: 75px !important;
padding: 0px !important;
font-size: 12px;
}
}

The resulyt after editing will look like this:

If it work, please mark as a solution. Good luck!

i think i have altered too many codes at this point that it isnt changing anything. I was able to get the button back and remove the dark spot but now the buy now button is just a bit big