2 Answers
Excellent question, Ashley!
Most themes these days include pre-styled buttons you can insert as a shortcode. Here's an example of what a shortcode button looks like:
[button url="https://destination.com" size="large"]Button Text[/button]
Still other themes include CSS styles, which you can apply to any link, by adding a 'class' to the link code. You may need to switch to the text editor to do so. Here's an example of what code might look for a button:
<a class="button" href="https://destination.com">Button Link Text</a>
You'll create a link as normal, then edit the code for the link to add the part that says: class="button"
If your theme doesn't already include support for buttons, you might install a plugin like the Buttons Shortcode and Widget plugin, which will add the ability to create buttons on your site using a shortcode, as demonstrated above.
So those are the various methods for adding a button. Remember, a button is really just a link that has some added styling to provide the colored background, rounded corners, and text link color.
Hope this helps!