How Can Changing the Excerpt's font in the single posts?

Hi,

I believe you are referring to the post subtitle, in the post page
– https://www.screencast.com/t/oPhbSbBu
The subtitle font properties can be changed in the theme panel fonts->post elements
– https://www.screencast.com/t/6GuaMCr6x

Thanks

Hi,

That is true, the automatic excerpts are picked form the first paragraph in the post content, unless manually set. The post content paragraphs are treated the same, the first paragraph does not have a specific setting in the theme panel.
All the post content paragraphs can be customized, but not only the first one
– https://www.screencast.com/t/4kmhaHxJscc

Thanks

Hi,

You could try and target the first paragraph in the post content with CSS, like this
– https://www.screencast.com/t/8eyzgCOjwd0A
This code will select the first paragraph and allow you to style it as you want, give it a try. Use the font properties you want in the code example, then enter it in Theme panel->Custom CSS section

.td-post-content p:first-child {
color: blue;
}

Thanks