JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
id: [<div class="trunc">
userrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr</div>]</div>

CSS

.container {
  display: inline-block;
  white-space: nowrap;
  border: 1px solid black;
  width: 100%;
}
.trunc {
   width: 100%;
  overflow: hidden;
	text-overflow: ellipsis;
	-o-text-overflow: ellipsis;
	white-space: nowrap;
}