.fs-background {
  overflow: hidden;
  position: relative;

}
.fs-background,
.fs-background-container,
.fs-background-media {
  -webkit-transition: none;
          transition: none;
}
.fs-background-container {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  z-index: 0;
  overflow: hidden;
}
.fs-background-media {
  position: absolute;
  top: 0;
  bottom: 0;
  opacity: 0;
}
.fs-background-media.fs-background-animated {
  -webkit-transition: opacity 0.5s linear;
          transition: opacity 0.5s linear;
}
.fs-background-media img,
.fs-background-media video,
.fs-background-media iframe {
  width: 100%;
  height: 100%;
  display: block;
  -webkit-user-drag: none;
}
.fs-background-media.fs-background-native,
.fs-background-media.fs-background-fixed {
  width: 100%;
  height: 100%;
}
.fs-background-media.fs-background-native img,
.fs-background-media.fs-background-fixed img {
  display: none;
}
.fs-background-media.fs-background-native {
  background-position: center;
  background-size: cover;
}
.fs-background-media.fs-background-fixed {
  background-position: center;
  background-attachment: fixed;
}
.fs-background-embed.fs-background-ready:after {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  content: '';
}
.fs-background-embed.fs-background-ready iframe {
  z-index: 0;
}