JSFiddle - React, Tailwind, and code Playground

HTML

<button class="overflow">测试文字测试文字</button>
<div class="overflow">测试文字测试文字</div>

CSS

.overflow {
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  width:50px;
  display:inline-block;
}