JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<p>
Today W3C announced a powerful tool for managing XML-rich processes such as business processes used in enterprise environments. The W3C Recommendation "XProc: An XML Pipeline Language," provides a standard framework for composing XML processes. XProc streamlines the automation, sequencing and management of complex computations involving XML by leveraging existing technologies widely adopted in the enterprise setting. "XML is tremendously versatile," said Norman Walsh, MarkLogic, and one of the co-editors of the specification. "Just off the top of my head, I can name standard ways to store, validate, query, transform, include, label, and link XML. What we haven't had is any standard way to describe how to combine them to accomplish any particular task. That's what XProc provides." Read more in the press release and learn more about XML.
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The XML Processing Model Working Group has published the First Public Working Draft of XML processor profiles. This specification defines several XML processor profiles, each of which fully determines a data model for any given XML document. It is intended as a resource for other specifications, which can by a single normative reference establish precisely what input processing they require. Learn more about the Extensible Markup Language (XML) Activity.
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CSS

div {
    width: 500px;
    -webkit-column-count: 2;
    -webkit-column-gap: 2em;   /* shown in yellow */            
    -webkit-column-rule: 4px solid green;
    padding: 5px;      /* shown in blue */
    -webkit-column-span: all;
}
br {
    -webkit-column-span: all;
    column-span: all;
}