/* (X) NOT IMPORTANT - COSMETICS */
* {
  font-family: Arial, Helvetica, sans-serif;
  box-sizing: border-box;
}
body .center {
  max-width: 400px;
  padding: 10px;
}
form {
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid #eee;
  background: #f7f7f7;
}
input {
  display: block;
  width: 100%;
  padding: 10px;
}
input[type=text] {
  border: 1px solid #ddd;
}
input[type=submit] {
  margin-top: 20px;
  border: 0;
  color: #fff;
  background: #2f3ac1;
  cursor: pointer;
}
#results div {
  padding: 10px;
  margin-bottom: 10px;
  border: 1px solid #eee;
  background: #f7f7f7;
}
#results div:nth-child(even) {
  background: #fff;
}