JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<button class="my-button-style">Btn 1</button>
<button class="my-button-style">Btn 2</button>
<button class="my-button-style">Btn 3</button>
</div>

CSS

.my-button-style + .my-button-style {
  margin-left: 40px;
}

/* general button style */
.my-button-style {
  height: 100px;
  width: 150px;
}