*,
*::after,
*::before {
  margin: 0;
  padding: 0;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: url("../image/Background.png") no-repeat
    center/cover;
  overflow: hidden;
}
section {
  position: relative;
  width: 100%;
  height: 100vh;
}
img {
  width: 100%;
  object-fit: fill;
}

.mountain {
  position: absolute;
  bottom: -1000px;
  z-index: 999;
}
.river {
  z-index: 9;
  position: absolute;
  bottom: -600px;
}
.trees {
  z-index: 999;
  position: absolute;
  bottom: -1000px;
  height: 100%;
}
.sun {
  object-fit: contain;
  position: absolute;
  z-index: 1;
  bottom: -500px;
}
@media only screen and (max-width:650px){
  .trees{
    height:auto;
  }
}