Custom font for Projects / Blog / Arrows

Site URL: https://tulip-dahlia-9pb7.squarespace.com/config/design

Hi there,
I'm very new to CSS but have managed to add a custom font to most of the site.
Can anyone please advise how to change the font on project titles and blog posts?
I'm using the Pazari theme. 
Thanks
 

See this. 

Thanks so much.
I've tried...

• title: h3.portfolio-title
• item: .portfolio-grid-basic
• portfolio image: .portfolio-grid-basic .grid-image

None of these are working tho?

This code worked for changing colour but I still can't change the font.

.portfolio-title {
  color: #ffffff !important;
    font-size: 35px !important;
}

So this doesn't work???

.portfolio-title {
  font-family:TRASH;
font-size:15px;}

I'm using pazari theme.

Very confusing.

try

.portfolio-title *

Arrr - thanks for helping but that's still not working.

Tried this...

.portfolio-title * {
  font-family:TRASH;
font-size:30px !important;
}

This worked for the header
.header-nav *, .header-menu-nav * {
    font-family: TRASH;
font-size:15px;}

Not sure why it's not working for portfolio?!

Thanks.

Owe you coffees!

.portfolio-title {
    font-family: 'TRASH' !important;
}

Genius! That worked. Thanks so much!

Hello again.

Working my way through my site trying to replace all instances with a custom font.
The code below worked a treat but when I copy and replace it with some other CSS such as...

.blog-item-entry {
    font-family: 'TRASH' !important;
}

or 

.item-pagination-link–prev .item-pagination-prev-next {
    font-family: 'TRASH' !important;
}

it doesn't work?

Trying to figure out the formula is really confusing.

Thanks again.

.portfolio-title {
    font-family: 'TRASH' !important;
}

if you want all elements on your site, use Trash font, just insert this CSS

* {
	font-family: 'TRASH' !important;
}

* mean all elements

AMMMAZING! 

Thank you!!!!!!

Unreal. 

How do I change the colour / size?

Do I need to code each specific area?

For instance - these are black when I'd like to make them white.

Thanks again for helping so much. Spent hours trying to fix this.