<main>
  <img src="https://upload.wikimedia.org/wikipedia/en/thumb/f/fe/Garuda_Indonesia_Logo.svg/1280px-Garuda_Indonesia_Logo.svg.png" width="300">
  <h3><span class="fontawesome-plane">
  <h2>Pilih jadwal penerbangan anda dibawah ini</h2>
  <div class="input-daterange input-group" id="flight-datepicker">
    <div class="form-item">
      <label>Keberangkatan</label><span class="fontawesome-calendar"></span>
      <input class="input-sm form-control" type="text" id="start-date" name="start" placeholder="Pilih tanggal pulang" data-date-format="DD, MM d"/><span class="date-text date-depart"></span>
    </div>
    <div class="form-item">
      <label>Pulang</label><span class="fontawesome-calendar"></span>
      <input class="input-sm form-control" type="text" id="end-date" name="end" placeholder="Pilih tanggal pulang" data-date-format="DD, MM d"/><span class="date-text date-return"></span>
    </div>
  </div>
</main>
@import url(https://fonts.googleapis.com/css?family=Lato:900,300);
@import url(http://weloveiconfonts.com/api/?family=fontawesome);
* {
  box-sizing: border-box;
}

body {
  font-family: "Lato", sans-serif;
  line-height: 1.2;
background: #36D1DC;  /* fallback for old browsers */
background: -webkit-linear-gradient(to right, #5B86E5, #36D1DC);  /* Chrome 10-25, Safari 5.1-6 */
background: linear-gradient(to right, #5B86E5, #36D1DC); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */


}

h1 {
  font-size: 40px;
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 12px;
}

h2 {
  font-size: 22px;
  color: #ffffff;
  margin-bottom: 12px;
}

h3 {
  font-size: 15px;
  color: #ffffff;
  margin-bottom: 12px;
}

main {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  padding: 24px;
  width: 100%;
  height: 100%;
  max-width: 600px;
}

#flight-datepicker {
  margin-top: 36px;
}
@media screen and (min-width: 400px) {
  #flight-datepicker {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
  }
}
#flight-datepicker .form-item {
  position: relative;
  margin: 12px 0 60px;
}
@media screen and (min-width: 400px) {
  #flight-datepicker .form-item {
    margin: 12px 24px 0 0;
  }
}
#flight-datepicker label {
  display: block;
  margin-bottom: 8px;
  color: white;
}
#flight-datepicker input {
  display: block;
  margin-bottom: 8px;
  padding-bottom: 6px;
  width: 100%;
  font-family: "Lato", sans-serif;
  font-size: 22px;
  font-weight: bold;
  text-align: left;
  color: #0e3e43;
  background-color: transparent;
  border: none;
  border-bottom: 2px solid #ffffff;
  border-radius: 0;
  outline: none;
  -webkit-transition: border-color .2s ease-out;
  transition: border-color .2s ease-out;
}
#flight-datepicker input:first-child, #flight-datepicker input:last-child {
  border-radius: 0;
}
#flight-datepicker input::-webkit-input-placeholder {
  color: #0e3e43;
  font-size: 14px;
  line-height: 30px;
  -webkit-transition: color .2s .2s ease-out;
  transition: color .2s .2s ease-out;
}
#flight-datepicker input:-moz-placeholder {
  color: #0e3e43;
  font-size: 14px;
  line-height: 30px;
  -webkit-transition: color .2s .2s ease-out;
  transition: color .2s .2s ease-out;
}
#flight-datepicker input::-moz-placeholder {
  color: #0e3e43;
  font-size: 14px;
  line-height: 30px;
  -webkit-transition: color .2s .2s ease-out;
  transition: color .2s .2s ease-out;
}
#flight-datepicker input:-ms-input-placeholder {
  color: #0e3e43;
  font-size: 14px;
  line-height: 30px;
  -webkit-transition: color .2s .2s ease-out;
  transition: color .2s .2s ease-out;
}
#flight-datepicker input:focus {
  border-bottom-color: #125259;
}
#flight-datepicker input:focus::-webkit-input-placeholder {
  color: transparent;
  -webkit-transition: color .2s ease-out;
  transition: color .2s ease-out;
}
#flight-datepicker input:focus:-moz-placeholder {
  color: transparent;
  -webkit-transition: color .2s ease-out;
  transition: color .2s ease-out;
}
#flight-datepicker input:focus::-moz-placeholder {
  color: transparent;
  -webkit-transition: color .2s ease-out;
  transition: color .2s ease-out;
}
#flight-datepicker input:focus:-ms-input-placeholder {
  color: transparent;
  -webkit-transition: color .2s ease-out;
  transition: color .2s ease-out;
}
#flight-datepicker .date-text {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto;
  top: calc(100% + 6px);
  font-size: 12px;
  color: white;
}
@media screen and (min-width: 400px) {
  #flight-datepicker .date-text {
    top: 100%;
  }
}

.datepicker.dropdown-menu {
  padding: 0;
  background-clip: border-box;
  border: none;
  border-radius: 0;
  -webkit-animation: popup .2s ease-out forwards;
          animation: popup .2s ease-out forwards;
}
.datepicker.dropdown-menu table {
  background-color: #1b7983;
}
.datepicker.dropdown-menu table thead {
  background-color: #1b7983;
}
.datepicker.dropdown-menu table thead tr {
  border-top: 0;
}
.datepicker.dropdown-menu table tbody {
  background-color: white;
}
.datepicker.dropdown-menu table tr {
  border-top: 1px solid #ededed;
}
.datepicker.dropdown-menu table tr td, .datepicker.dropdown-menu table tr th {
  width: auto;
  height: 24px;
  padding: 8px;
  font-size: 16px;
  border-radius: 0;
  -webkit-transition: background-color .6s ease-out;
  transition: background-color .6s ease-out;
}
@media screen and (min-width: 400px) {
  .datepicker.dropdown-menu table tr td, .datepicker.dropdown-menu table tr th {
    padding: 12px;
  }
}
.datepicker.dropdown-menu table tr td:hover, .datepicker.dropdown-menu table tr td.active:hover, .datepicker.dropdown-menu table tr td:active:hover, .datepicker.dropdown-menu table tr th:hover, .datepicker.dropdown-menu table tr th.active:hover, .datepicker.dropdown-menu table tr th:active:hover {
  border-color: #ededed;
  border-radius: 0;
  -webkit-transition: background-color .2s ease-out;
  transition: background-color .2s ease-out;
}
.datepicker.dropdown-menu table tr td.focused, .datepicker.dropdown-menu table tr td.selected, .datepicker.dropdown-menu table tr th.focused, .datepicker.dropdown-menu table tr th.selected {
  background-color: #24A0AD;
  border-color: #ededed;
  border-radius: 0;
}
.datepicker.dropdown-menu table tr td.active, .datepicker.dropdown-menu table tr td.active:focus, .datepicker.dropdown-menu table tr td.active.active:hover, .datepicker.dropdown-menu table tr td:active:focus, .datepicker.dropdown-menu table tr td.highlighted, .datepicker.dropdown-menu table tr th.active, .datepicker.dropdown-menu table tr th.active:focus, .datepicker.dropdown-menu table tr th.active.active:hover, .datepicker.dropdown-menu table tr th:active:focus, .datepicker.dropdown-menu table tr th.highlighted {
  background-color: #1b7983;
  border-color: #ededed;
}
.datepicker.dropdown-menu table tr th.datepicker-switch {
  font-size: 12px;
  font-weight: bold;
  line-height: 2;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #ffffff;
  background-color: inherit;
  border-radius: 0;
}
.datepicker.dropdown-menu table tr th.prev,
.datepicker.dropdown-menu table tr th.next {
  color: #ffffff;
  background-color: #17656e;
  border-radius: 0;
}
.datepicker.dropdown-menu table tr th.dow {
  padding: 2px 12px;
  font-size: 12px;
  line-height: 2;
  color: #ffffff;
  background-color: #19717a;
  border-top: 1px solid #196d76;
  border-radius: 0;
}
.datepicker.dropdown-menu table tr td.day {
  width: 24px;
  border-right: 1px solid #ededed;
}
.datepicker.dropdown-menu table tr td.day:last-child {
  border-right-width: 0;
}
.datepicker.dropdown-menu table tr td.range {
  background-color: #eeeeee;
}
.datepicker.dropdown-menu .new,
.datepicker.dropdown-menu .old,
.datepicker.dropdown-menu .disabled,
.datepicker.dropdown-menu .disabled:hover {
  color: #ccc;
}

[class*="fontawesome-"]:before {
  font-family: 'FontAwesome', sans-serif;
}

.fontawesome-calendar {
  position: absolute;
  top: 26px;
  right: 0;
  font-size: 24px;
  z-index: -99;
}

@-webkit-keyframes popup {
  from {
    opacity: 0;
    -webkit-transform: translateY(12px);
            transform: translateY(12px);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}

@keyframes popup {
  from {
    opacity: 0;
    -webkit-transform: translateY(12px);
            transform: translateY(12px);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}

// Make your own here: https://eternicode.github.io/bootstrap-datepicker

var dateSelect     = $('#flight-datepicker');
var dateDepart     = $('#start-date');
var dateReturn     = $('#end-date');
var spanDepart     = $('.date-depart');
var spanReturn     = $('.date-return');
var spanDateFormat = 'ddd, MMMM D yyyy';

dateSelect.datepicker({
  autoclose: true,
  format: "mm/dd",
  maxViewMode: 0,
  startDate: "now"
}).on('change', function() {
  var start = $.format.date(dateDepart.datepicker('getDate'), spanDateFormat);
  var end = $.format.date(dateReturn.datepicker('getDate'), spanDateFormat);
  spanDepart.text(start);
  spanReturn.text(end);
});

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.0/css/bootstrap-datepicker3.standalone.css

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.0/js/bootstrap-datepicker.min.js
  3. https://cdnjs.cloudflare.com/ajax/libs/jquery-dateFormat/1.0/jquery.dateFormat.js