JSFiddle - React, Tailwind, and code Playground

HTML

<div class='searchBox'>
  <form>
    <div class='entryFields'>
      <input type='text' />
      <input type='text' />
    </div>
    <button>
     Отправить
    </button>
  </form>
</div>

CSS

.entryFields {
  float:left;
}

button {
  float:right;
}