.btn1, .btn2{
	display: inline-flex;
}

fieldset {
	border: none;
}

.highcharts-description, legend, label {
	font-family: "Helvetica Neue",Helvetica,"Segoe UI",Arial,freesans,sans-serif;
  }

.container {
	max-width: 800px;
	height: 400px;
	margin: 1em auto;
  }