In the Rich Text Element, you can click the Link button in the toolbar and check the option highlighted below.
For webmasters who still need to use the code in the Custom HTML element, that is also a way to have a link open in a new browser tab. Here’s how to do it:
The simple answer is to use a Custom HTML element and insert the target="_blank" attribute into your link.
Here’s how to do it more specifically:
1. Insert a Custom HTML element onto your page.
2. Add the link including the target attribute:
<a><href="http://www.schoolloop.com" target="_blank">School Loop</a>
Replace "http://www.schoolloop.com" with your URL and replace "Link text goes here" with the label you want for your link.
3. Click Save & Exit and you are done!