How to remove border

I embedded my form into my website and now see that I need to make another change.  I have a Let's Get Started button (which is located on Page 1 of my form) and there is a large blue rectangle appearing around the button once the form is embedded on my web site.  I want to eliminate the blue rectangle.  I just want the user to see the button.  

I could not locate any large blue rectangle around the "Let's Get Started" button: https://form.jotform.com/61643363388159 

Please share the URL of the page where you have embedded your form, so we can check there, we will be glad to assist you.