JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<form class="form-inline">
  <div class="form-group">
    <label for="d1">Llegada</label>
    <input type="datetime" class="form-control" id="d1" placeholder="">
  </div>
  <div class="form-group">
    <label for="d2">Salida</label>
    <input type="datetime" class="form-control" id="d2" placeholder="">
  </div>
  <div class="form-group">
    <label for="d3">Habitaciones</label>
    <select id="d3"><option>1</option><option>2</option><option>3</option></select>
  </div>
  <div class="form-group">
    <label for="d4">Adultos</label>
    <select id="d4"><option>1</option><option>2</option><option>3</option></select>
  </div>
  <button type="submit" class="btn btn-default">Ver Tarifas</button>
</form>