style.css

.container-fluid.main{
  position: relative; /* To make the navbar positions relative to this container */
  padding: 0;
}

.navbar-default {
  background-image: none;
  background-color: transparent; /* Make the menu become transparent */
  border-radius: 0px;
  border: 0;
  box-shadow: none;
  padding: 10px;
  position: absolute; /* Make the menu out of the document flow so it can placed anywhere without disturbing other widgets */
  top: 0;
  left: 0;
  right: 0;
  z-index: 10; /* If you delete this line, your menu link won't be clicked because it is behind the background. Applying this code bring the menu in front of the background */
}

.navbar-default .navbar-brand {
  font-family: Verdana;
  color: #ffffff;
  font-size: 20px;
}

.navbar-default .navbar-brand:hover,
.navbar-default .navbar-brand:focus {
  color: #ffffff;
  background-color: transparent;
}

.navbar-default .navbar-nav > li > a {
  color: #ffffff;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus {
  color: #ffffff;
  background-color: transparent;
}

.navbar-default .navbar-toggle {
  border-color: transparent;
}

.navbar-default .navbar-toggle:hover {
  background-color: transparent;
}

.navbar-default .navbar-toggle:focus {
  background-color: transparent;
}

.navbar-default .navbar-toggle .icon-bar {
  background-color: #ffffff;
}

.carousel .background {
  background-position: center/cover no-repeat;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  height: 1080px;
}

@media (max-width:1080px) {
  .carousel .background {
    background-size: center/cover no-repeat; /* To make the background image looks good */
  }
}

.carousel .background.a {
  background-image: linear-gradient( rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(p12.jpg);
}

.carousel .background.b {
  background-image: linear-gradient( rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(p3.jpg);
}

.carousel .background.c {
  background-image: linear-gradient( rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(p17.jpg);
}


.carousel .background.e {
  background-image: linear-gradient( rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(p15.jpg);
}

.carousel-fade .carousel-inner .item {
  opacity: 0;
  transition: opacity 1.6s; /* The 0.5s describes the duration to make the opacity from 0 to 1 */
}

.carousel-fade .carousel-inner .active {
  opacity: 1;
}

/* CSS Hack to trigger GPU for smooth transition */
@media all and (transform-3d),
(-webkit-transform-3d) {
  .carousel-fade .carousel-inner > .item.next,
  .carousel-fade .carousel-inner > .item.active.right {
    opacity: 0;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  .carousel-fade .carousel-inner > .item.prev,
  .carousel-fade .carousel-inner > .item.active.left {
    opacity: 0;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  .carousel-fade .carousel-inner > .item.next.left,
  .carousel-fade .carousel-inner > .item.prev.right,
  .carousel-fade .carousel-inner > .item.active {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
}
/* CSS Hack to trigger GPU for smooth transition */

.covertext {
  position: absolute; /* To make the div to be place anywhere. It is out of the document flow */
  top: 200px; /* The distance between the div with the top of document */
  left: 0px; /* Make the div full width */
  right: 0px; /* Make the div full width */
}

.title {
  font-family: Verdana;
  font-weight: 600;
  font-size: 60px;
  color: #ffffff;
  text-align: center;
}

.subtitle {
  font-family: Verdana;
  font-size: 23px;
  color: #ffffff;
  text-align: center;
}

.explore {
  text-align: center;
  margin-top: 10px;
}

.explore .btn-lg,
.explore .btn-lg:hover {
  border-radius: 30px;
  padding: 15px 25px;
  font-size: 22px;
  background-image: none;
  background-color: #FF4000;
  border-color: #FF4000;
  color: #ffffff;
}

.btn,
.btn:hover {
  border-radius: 0px;
  background-image: none;
  background-color: #FF4000;
  border-color: #FF4000;
  color: #ffffff;
  margin-bottom: 20px;
  box-shadow: none;
  outline: none;
}

.btn:focus,
.btn:active:focus,
.btn.active:focus,
.btn.focus,
.btn:active.focus,
.btn.active.focus {
  color: #ffffff;
  outline: none;
}