Image padding

Site URL: http://www.emilygeizer.com

What is the best way to place 3 images side-by-side with no padding in between and to cover full width of page? 

I'm looking to do this here on my home page (index page) and hoped to add code in the page header code injection.

Add a new index item section >> Add 3 Text Blocks

Then share url again. We will give the code to do this

Or you can add 3 sections side by side, add text, then we can also give similar code