body,
html {
  height: 100%;
  margin: 0px;
  overflow: hidden;
}
body {
  background: linear-gradient(20deg, #e7e3e3, #e7e3e3, #994, #993);
  background-size: 400% 400%;
  animation: gradient 5s ease infinite;
}
body,
html {
  height: 100%;
  margin: 0;
  font: 400 15px/1.8 "Lato", sans-serif;
  color: #777;
}
@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}
.bg {
  overflow: hidden;
  /* Full height */
  height: 100%;
  /* The image used */
  /* Center and scale the image nicely */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  /* zoom effect */
  transition: all 5s ease;
  -webkit-transition: all 5s ease;
  -moz-transition: all 5s ease;
  -o-transition: all 5s ease;
}
.image {
  position: absolute;
  overflow: hidden;
  top: 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  width: 100%;
  height: 100%;
}
.container_bg {
  -webkit-transition: all 1.8s linear 0s;
  -moz-transition: all 1.8s linear 0s;
  -o-transition: all 1.8s linear 0s;
  transition: all 1.8s linear 0s;
  visibility: visible;
  opacity: 1;
}
.container_bg.fade_out,
.container_bg.not_fit {
  visibility: hidden;
  opacity: 0;
}
@media all and (min-width: 1024px) {
  .container_bg.bg_active:hover .image,
  .container_bg.bg_active:focus .image {
    transform: scale(1.05);
  }
  .container_bg .image {
    -webkit-transition: background 200ms ease-in-out 300ms, transform 4s;
    -moz-transition: background 200ms ease-in-out 300ms, transform 4s;
    -o-transition: background 200ms ease-in-out 300ms, transform 4s;
    transition: background 200ms ease-in-out 300ms, transform 4s;
  }
}