JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <span class="headline">this Needs centering</span>
    <span class="corner-tag">without regard to this<span>
 </div>

CSS

.container {
    text-align: center;
    position: relative;
}
.corner-tag {
    border: 1px solid black;
    position: absolute;
    right: 0;
}