How to change padding for specific two sections?

Hi everyone,

I’m working on the spacing issue for my website. First of all, I’m using the impact theme from Shopify and I tried to adjust the vertical spacing from the theme editor. But it still did not work for what I expected. Is there a way to change the padding for specific sections?

Right now, the padding between the rich text section and my app is quite big, and it won’t change even if I adjusted the vertical spacing from the theme editor. Can you all help me see if there is a way to fix the padding between this two sections?

Another quick question: Is there a way to embed a link to the text ( make them shown in underlined) instead of the creating a button on the page? I’m trying to embed an link to one of my key word and take the customer to another page.

For example:

Just like the example shown above, when the user click on the underlined text, it will take them to another page on the website.

Thank you all so much! I appreciate your help!

@William021 share your store URL