Indent typography

Hello, hope for help!

The pages is not ready, therefore not linked.

I work in Astra free version. And I want to do a Indent for maby three lines. And not the first line. I have found lots of indent and try. But I just wanna for one row. Not like Blockquote.

And Astra free dont let me put in CSS, so I have to do it in STYLE / text.