html{
  width: 100%;
  height: 100%;
}

  body {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  main {
    flex: 1 0 auto;
  }

  #back-image{
    padding-top: 3em;
    padding-bottom: 3em;
    background: url('./img/space.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    height: 100%;
    /*padding-left: 150px;*/
    z-index: 9999;
  }


#demo-carousel{
  background: url('./img/nature.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  /*padding-left: 150px;*/
  opacity: 0.95;
}

.up{
  padding-left: 1em;
  padding-top: 0.35em;
}

#video{
  padding: 10px;
  z-index: 9999;
  }

#bk-img{
  width: 100%;
  height: 100%;
  margin: auto;
  padding-top: 3em;
  padding-bottom: 3em;
  background: url('./img/uni3.jpg');
  background-repeat: no-repeat;
  background-position: center center;
}

.page-footer{
  padding-left: 3em;
}

#modal1 {
  opacity: 0.95;
}