TYPO3 v8 has reached its end-of-life March 31st, 2020 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.
You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.
This will cause the value to be wrapped in a p-tag coloring the value red:
<p style="color: red;"> | </p>
<...> | </...>
Used to wrap something. The vertical bar ("|") is the place, where your content will be inserted; the parts on the left and right of the vertical line are placed on the left and right side of the content.
Spaces between the wrap-parts and the divider ("|") are trimmed off from each part of the wrap.