.no_sait {
  height: 100vh;
  min-height: 250px;
  width: 100%;
  overflow: hidden;
}
.no_sait__block {
  top:50%;
  left: 50%;
  transform:translate(-50%, -50%);
  z-index: 5;
}

@media (max-width: 840px) {
  .no_sait {
    height: 100%;
  }
  .no_sait__block {
    position: relative !important;
    top: 0;
    left: 0;
    transform: inherit;
  }
}

.header__logo {
  display: inline-block;
  box-sizing: border-box;
  min-width: 10rem /* 200/20 */;
  min-height: 2rem /* 40/20 */;
}

@media (max-width: 480px) {
	.header__logo {
    min-width: 5.8rem /* 115/20 */;
    min-height: 1.2rem /* 24/20 */;
  }
}

.page_img img {
  max-width: 500px;
}

.img_animation {
  display: block;
  position: absolute;
  z-index: 0;
}
.img_1 {
  top: 12px;
  height: 604px;
  width: 800px;
  right: 150px;
  z-index: 1;
}
.img_2 {
  bottom: 300px;
  height: 326px;
  width: 500px;
  left: -300px;
}
.img_3 {
  top: 50px;
  height: 592px;
  width: 593px;
  left: 200px;
}

.layer1 {
  -webkit-animation: layerMove1 45s ease-in-out infinite;
  -moz-animation: layerMove1 45s ease-in-out infinite;
  -ms-animation: layerMove1 45s ease-in-out infinite;
  -o-animation: layerMove1 45s ease-in-out infinite;
  animation: layerMove1 45s ease-in-out infinite;
}

.layer2 {
  -webkit-animation: layerMove2 45s ease-in-out infinite;
  -moz-animation: layerMove2 45s ease-in-out infinite;
  -ms-animation: layerMove2 45s ease-in-out infinite;
  -o-animation: layerMove2 45s ease-in-out infinite;
  animation: layerMove2 45s ease-in-out infinite;
}
.layer3 {
  -webkit-animation: layerMove3 45s ease-in-out infinite;
  -moz-animation: layerMove3 45s ease-in-out infinite;
  -ms-animation: layerMove3 45s ease-in-out infinite;
  -o-animation: layerMove3 45s ease-in-out infinite;
  animation: layerMove3 45s ease-in-out infinite;
}

@-webkit-keyframes layerMove1 {

  0% {
    -webkit-transform: translate(0px, 0px) rotate(0deg);
  }

  22% {
    -webkit-transform: translate(100px, -50px) rotate(-0.2deg);
  }

  42% {
    -webkit-transform: translate(-50px, 100px) rotate(1deg);
  }

  62% {
    -webkit-transform: translate(-100px, 100px) rotate(-25deg);
  }

  80% {
    -webkit-transform: translate(100px, -100px) rotate(45deg);
  }

  100% {
    -webkit-transform: translate(0px, 0px) rotate(0deg);
  }
}

@-webkit-keyframes layerMove2 {

  0% {
    -webkit-transform: translate(0px, 0px) rotate(0deg);
  }

  20% {
    -webkit-transform: translate(100px, 50px) rotate(25deg);
  }

  40% {
    -webkit-transform: translate(50px, -200px) rotate(-25deg);
  }

  60% {
    -webkit-transform: translate(100px, -50px) rotate(20deg);
  }

  72% {
    -webkit-transform: translate(-100px, 100px) rotate(-25deg);
  }

  80% {
    -webkit-transform: translate(-100px, 50px) rotate(-15deg);
  }

  100% {
    -webkit-transform: translate(0px, 0px) rotate(0deg);
  }
}

@-webkit-keyframes layerMove3 {

  0% {
    -webkit-transform: translate(0px, 0px) rotate(0deg);
  }

  25% {
    -webkit-transform: translate(50px, -50px) rotate(50deg);
  }

  45% {
    -webkit-transform: translate(25px, -50px) rotate(-45deg);
  }

  65% {
    -webkit-transform: translate(-50px, -25px) rotate(45deg);
  }

  75% {
    -webkit-transform: translate(-100px, 100px) rotate(-25deg);
  }

  90% {
    -webkit-transform: translate(100px, 100px) rotate(25deg);
  }

  100% {
    -webkit-transform: translate(0px, 0px) rotate(0deg);
  }
}