NikkiKing

I am trying to change the margins of my blog titles only. I want to keep the margins for my content/header/footer the same, but am wanting to pull in the margins a bit for just my titles. Is there a CSS code I could use that would only change the margin of the blog title itself? I have found ways to change the fonts, or the overall margins, but nothing for just the blog title itself. Thank you for your help!