That’s the front-page-3 widget/section and it’s controlled by the .flexible-widgets
on line 1757.
.flexible-widgets {
padding: 140px 0 120px;
}
This code also controls the padding/space on all of the other widgets, so if you change this directly, you’ll be changing all the rest of the widgets as well. If you just want to control the padding/space for this section alone, add something like this to your CSS –
.front-page-3 .flexible-widgets {
padding: 80px 0 60px;
}
The 80px
controls the top padding, and the 60px
controls the bottom. You can decrease or increase them more if you need to.
Let me know if that helps.