body, html {
  margin: 0;
}

html {
  height: 100%;
}

body {
  height: 90%;
  max-width: 800px;
  margin: 0 auto;
}

h1, p {
  font-family: sans-serif;
  text-align: center;
  padding: 20px;
}

.txt, select, form > div {
  display: block;
  margin: 0 auto;
  font-family: sans-serif;
  font-size: 16px;
  padding: 5px;
}

.txt {
  width: 80%;
}

select {
  width: 83%;
}

form > div {
  width: 81%;
}

.txt, form > div {
  margin-bottom: 10px;
  overflow: auto;
}

.clearfix {
  clear: both;
}

label {
  float: left;
  width: 10%;
  line-height: 1.5;
}

.rate-value, .pitch-value {
  float: right;
  width: 5%;
  line-height: 1.5;
}

#rate, #pitch {
  float: right;
  width: 81%;
}

.controls {
  text-align: center;
}

.controls[type=button]{

  margin-top: 10px;
  background-color: #4CAF50; /* Green */
  border-radius: 12px;
  border: 2px solid #ee0000;
  color: white;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 128px;
  width:480px;
  height:200px;
}

.controls[type=text]{

	height:200px;
	width:480px;
  margin-top: 10px;
  background-color: rgb(135, 162, 170); 
  border-radius: 12px;
  border: 2px solid #704f4f;
  color: white;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 128px;
}