Simple Green and Subscribe to comments

If you go to my site at https://www.thetrenchcoat.com and click on any of my entries the subscibe to comments check box is all the way at the bottom of the screen and I’m using the Simple Green theme. My stylesheet is at https://www.thetrenchcoat.com/wp-content/themes/simple-green/style.css

Is there any way to make the subscribe to comments box higher?