.slider {
  position: relative;
}

#slider {
  position: relative;
  overflow: hidden;
  width: 100% !important;
}
#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 100vh;
  width: 99999px;
  overflow: hidden;
  list-style: none;
}
#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  text-align: center;
}
#slider ul li .slide {
  background-size: cover;
  height: 100vh;
}

button.control_prev, button.control_next {
  position: absolute;
  top: 50%;
  z-index: 10;
  display: block;
  border: none;
  width: 2em;
  height: 2em;
  line-height: 1.9em;
  background: rgba(255, 255, 255, 0.3);
  color: #fff;
  text-align: center;
  text-decoration: none;
  font-weight: 600;
  font-size: 2rem;
  opacity: 0.8;
  cursor: pointer;
  border-radius: 50%;
  transform: translateY(-50%);
}
button.control_prev:focus, button.control_next:focus {
  outline: none;
  border: 1px rgba(255, 255, 255, 0.5) solid;
}
button.control_prev:hover, button.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

button.control_prev {
  left: 2rem;
}

button.control_next {
  right: 2rem;
}

.progress {
  position: absolute;
  background: rgba(255, 255, 255, 0.3);
  height: 0.5rem;
  width: 100%;
  bottom: 0;
  border-top: 1px rgba(0, 0, 0, 0.15) solid;
}
.progress .bar {
  height: 100%;
  width: 0%;
  background: #fff;
}

.teaser {
  position: absolute;
  top: 50%;
  text-align: center;
  width: 100%;
  color: #fff;
  transform: translateY(-50%);
}
.teaser h2 {
  font-family: 'Elephant', sans-serif;
  font-size: 4em;
  text-transform: none;
  line-height: 1.1em;
  color: #fff;
}
.teaser p {
  font-size: 1.8em;
  line-height: 1.3em;
  width: 33%;
  min-width: 25rem;
  margin: 0rem auto;
  padding: 1.5rem 0;
}
.teaser h3 {
  border-bottom: 2px #fff solid;
  width: 33%;
  padding: 1.5rem 0;
  margin: 0rem auto;
  min-width: 25rem;
}
.teaser a {
  margin-left: 0.5rem;
  margin-right: 0.5rem;
}

.slide::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
}