Tailwind CSS class .flex-none

<div class="flex bg-gray-200">
  <div class="flex-none bg-teal-400 p-4 m-2">1</div>
  <div class="flex-none bg-teal-400 p-4 m-2">2</div>
  <div class="flex-none bg-teal-400 p-4 m-2">3</div>
</div>

.flex-none {
    flex: none;
}