Floating Signature Left

Hi! I’m using Add Signature (Reloaded) to add a signature image to my posts and I would like to have it float left and not right. I was able to do this previously, but I think the plugin updated and I lost any tweaks I had to it. Can anyone give me some advice? Thank you so much.

http://dappledthings.me

https://wordpress.org/plugins/add-signature/