JSFiddle - React, Tailwind, and code Playground

HTML

<span class='box'>
  <span class='item'>Hello</span>
  <span class='item'>Hello World</span>
  <span class='item'>Hello lOOOOONG text</span>
</span>

CSS

.box {
  height: 200px;
  width: auto;
  border: 1px solid red;
  display: flex;
  flex-direction: column;
}

.item {
  background-color: gray;
  flex: 0 0 auto;
  width: auto;
}