JSFiddle - React, Tailwind, and code Playground
by Artur Klesun
HTML
<p class="datedAside">4 weeks ago</p>
CSS
p {
background: linear-gradient(180deg,
rgba(0,0,0,0) calc(50% - 1px),
rgba(192,192,192,1) calc(50%),
rgba(0,0,0,0) calc(50% + 1px)
);
}