Specifies the HTML element(s) to use for the 'next' button.
By default, the next button contains an SVG arrow pointing to the right:
<svg viewBox="0 0 24 24">
<path fill="currentColor" d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" />
</svg>
This can be any valid HTML element or text.
The below carousel has been given an
nextHTML value of
"Next".