Styling just for blog section

I want my header tags in the blog posts of my website to be styled differently to the way h1, h2, h3 are styled on the rest of my site. Is this possible?

Yes. But you need custom CSS

@keon Can you share link to blog posts?

Thanks. Do you know what class I would need to use? I can't work it out. Here's a post from my blog section https://sprout-tuna-swnf.squarespace.com/projects-1/brand-enhancement-campaign

19 hours ago, keon said:

Thanks. Do you know what class I would need to use? I can't work it out. Here's a post from my blog section https://sprout-tuna-swnf.squarespace.com/projects-1/brand-enhancement-campaign

What is access password?

Sorry! It's MortlakeSW14

9 hours ago, keon said:

Sorry! It's MortlakeSW14

I'm so sorry! It's Mortlakesw14

44 minutes ago, keon said:

I'm so sorry! It's Mortlakesw14

Where is header tag? 

The large paragraph at the top is H2, and the sub headings throughout the article is H3.

How would I be able to change them so whenever I posted a new blog post these tags would be styled differently to the H2 & H3 on the rest of the site?

10 hours ago, keon said:

The large paragraph at the top is H2, and the sub headings throughout the article is H3.

How would I be able to change them so whenever I posted a new blog post these tags would be styled differently to the H2 & H3 on the rest of the site?

Incorrect password

Hi, I've now removed all password restrictions from the site so you should be able to access it without problem. Any advice you can give me regarding the above styling issue would be greatly appreciated. 

Thanks!

On 12/5/2019 at 7:11 PM, keon said:

The large paragraph at the top is H2, and the sub headings throughout the article is H3.

How would I be able to change them so whenever I posted a new blog post these tags would be styled differently to the H2 & H3 on the rest of the site?

add to Home > Design > Custom CSS

div#item-5de4e6da7b2acb00e7eaa2ee h2 {
    font-size: 50px;
    color: red;
    letter-spacing: 2px;
    font-family: futura-pt;
}
div#item-5de4e6da7b2acb00e7eaa2ee h3 {
    font-size: 30px;
    color: green;
    letter-spacing: 1px;
    font-family: futura-pt;
}

Thanks, but doesn't that change the styling just for that one blog post? Is there a way to set it so that styling applies to all the blog entries?