body {
  font-family: Arial, Helvetica, sans-serif;

}

section {
  padding: 0 1em .5em;
  border: 3px solid blue;
  background-color: white;
  margin: 0 auto;
  width: 500px;
  margin-top: 60px;

}

h1 {
  margin: .5em 0;

}

label {
  float: left;
  width: 10em;
  text-align: right;
  padding-bottom: .5em;
}

input {
  margin-left: 1em;
  margin-bottom: .5em;
}

#future_value {
  background-color: #eee;
}


#article {
padding: 3% 15%;
}