* {
  box-sizing: border-box;
}

body {
  font: 16px Arial;
}

/*the container must be positioned relative:*/
.autocomplete {
  position: relative;
  display: inline-block;
}

input {
  border: 1px solid transparent;
  background-color: #f1f1f1;
  padding: 10px;
  font-size: 16px;
}

input[type="text"] {
  background-color: #f1f1f1;
  width: 100%;
}

input[type="submit"] {
  background-color: DodgerBlue;
  color: #fff;
  cursor: pointer;
}

.wrapper {
  width: 1000px;
  margin: 0 auto;
}