Space after intro text

Greetings.
I want to add a space after the intro text before the main text starts.

I tried adding this to the CSS, but it did not work. It works when I change it using the Inspection Tool, but not on the site itself.

Just to be clear, I want a space after "humane, logical, strategies" and before "Dogs need certain things".

This is what I added the to the custom CSS:

.intro-text p:last-child {
margin-bottom: 10;
}

Thanks for your help.
Jeff

Hi Jeff,

You should edit this custom CSS in custom.css file on your site:

.intro-text {
margin-bottom: 0px;
}

to:

.intro-text {
    margin-bottom: 15px;
}

Thanks!