Link in accordion open in a new tab

Hi, how can I have a link that's within an accordion open in a new tab?

To see an example, go to the following web page (see below), scroll to the 2nd accordion, click on its first row ('How to register'), and click on the link within it. I want that link to open in a new tab (target=_blank).

https://mandolin-terrier-tzne.squarespace.com/classes

password: Todd

Thanks!

Thank you! 

What code should I add in to make the links have an underline?

22 hours ago, harlowbogie said:

What code should I add in to make the links have an underline?

Add this under above code

<style>
  div.accordion-block a {
  	border-bottom: 1px solid black;
  }
</style>

Thank you!