Email signature not working on mobile

[SDiMattia]

I have a question about my email signature I generated through Hubspot's tool. I pasted the HTML into my Hubspot email signature. It looks great on desktop, but on mobile (my iPhone anyway), the formatting is all off -- the picture isn't loading and the email and link are going vertically down the screen, one letter at a time. How can I make the email signature format correctly for mobile? Thanks! 

This is my HTML code: My HTML code

[Jaycee_Lewis]

Hey, @SDiMattia 👋 Welcome to the community! Here's your next steps:

• read this post (it's very short) — it has exactly what you need to provide for troubleshooting
• post your issue here and include the details from the above post — Sales Community

You didn't do anything wrong, my goal is to make sure your post gets the attention it deserves. This is our best next steps.

Thanks! — Jaycee