.heading {
    color: #fff;
    display: block;
    vertical-align: middle;
    position: relative;
    z-index: 1;
    width: auto;
    height: auto!important;
    text-align: center;
    margin: 0 auto;
}

/**********************
Carousel 4 imagenes fijas
***********************/
#demo {
  overflow: hidden;
  position: relative;
  z-index: 1;
}

#demo .carousel-inner .carousel-item img {
  width: 100%;
  height: 100%;
}
#demo .carousel-inner::after {
    content: " ";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #000;
    z-index: 0;
    opacity: .6;
}

/**********************
Owl Carousel slider Index
***********************/
#owl-demo .item img {
  display: block;
  width: 100%;
  height: auto;
}

#demo .carousel-caption {
    position: absolute;
    right: 15%;
    top: 35%;
    left: 15%;
    z-index: 10;
    padding-top: 20px;
    padding-bottom: 20px;
    color: #fff;
    text-align: center;
    width: 70%;
}

#demo .carousel-indicators {
    position: absolute;
    right: 0;
    bottom: 15px;
    left: 0;
    z-index: 15;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center;
    justify-content: center;
    padding-left: 0;
    margin-right: 15%;
    margin-left: 15%;
    list-style: none;
}