* { box-sizing: border-box; }
    body {
      font: 16px Arial;
    }
    .autocomplete {
      /*the container must be positioned relative:
      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;
      */
    }
    .autocomplete-items {
      position: absolute;
      border: 1px solid #d4d4d4;
      border-bottom: none;
      border-top: none;
      z-index: 99;
      /*position the autocomplete items to be the same width as the container:*/
      top: 100%;
      left: 1em;
      right: 0;
      width: 93%;
    }
    .autocomplete-items div {
      /*padding: 10px;*/
      padding: 0.25em;
      cursor: pointer;
      background-color: #efefef;
      border-bottom: 1px solid #d4d4d4;
    }
    .autocomplete-items div:hover {
      /*when hovering an item:*/
      background-color: #e6f2ff;
    }
    .autocomplete-active {
      /*when navigating through the items using the arrow keys:*/
      background-color: DodgerBlue !important;
      color: #ffffff;
    }