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HTML 

              
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  c-0.1,0.8-0.2,1.4-0.1,1.8c0,0.5,0.2,2.1,0.4,2.5c0.2,0.4,0.5,1.3,1.1,1.4c0.5,0.1,0.9-0.3,1.4-0.5s1.2-0.7,1.7-0.9
  c0.2-0.1,0.3-0.1,0.4-0.2c0.3,0.3,0.9,0.9,1.2,1.1c0.2,0.1,0.5,0.2,0.9,0c0.4-0.2,0.8-1.3,1.1-2.2c0.3-0.9,0.5-1.7,0.3-4.1
  C255.4,398.8,255.4,398.7,255.4,398.6z M247.5,400c-0.2,0-0.3,0-0.4,0C247.3,400,247.4,400,247.5,400z"></path>
  </g>

  </g>
  <g class="iPadGroup device">
  <g clip-path="url(#iPadMask)">
  <g class="iPadSVGContainer"></g>

  </g>
  <g>
  <path fill="#5A5A5A" d="M680.1,195h-177c-6.6,0-12,5.4-12,12v108.5v101.1v0.5v29.5c0,6.6,5.4,12,12,12h177c6.6,0,12-5.4,12-12
  v-60.2v-0.5V273.1V207C692.1,200.4,686.7,195,680.1,195z M674.1,277.3V389v0.5v49.1h-165V414v-0.5V311.3v-95.8h165V277.3z"></path>
  </g>
  <g>
  <circle fill="#7C7D80" cx="591.3" cy="204.7" r="1.4"></circle>
  <g>
  <path fill="#444444" d="M591.6,444.3c-2.1,0-3.9,1.6-4.1,3.7c0-0.2,0-0.3,0-0.5c0-2.3,1.9-4.2,4.2-4.2s4.2,1.9,4.2,4.2
  c0,0.2,0,0.3,0,0.5C595.5,446,593.8,444.3,591.6,444.3z"></path>
  <path fill="#7B7C7F" d="M591.6,444.3c2.1,0,3.9,1.6,4.1,3.7c-0.2,2.1-2,3.7-4.1,3.7s-3.9-1.6-4.1-3.7
  C587.7,446,589.5,444.3,591.6,444.3z"></path>
  </g>
  </g>

  </g>
  <g class="phoneGroup device">

  <g clip-path="url(#phoneMask)">
  <g class="phoneSVGContainer"></g>
  </g>
  <g>
  <rect x="716.7" y="334" fill="none" width="59.8" height="105.3"></rect>
  <path fill="#5A5A5A" d="M768.7,315c0,0-2.5,0-2.9,0l-0.1,0h-5.5l-2.2,0h-33.2c-6.7,0-12.2,5.4-12.2,12v6.6v0.5v0.4v5.3v8.9v7.6
  v2.1v7.4v1v79.5c0,6.6,5.5,12,12.2,12h43.8c6.7,0,12.2-5.4,12.2-12V327C780.8,320.4,775.3,315,768.7,315z M776.5,439.3h-59.8V334
  h59.8V439.3z"></path>
  </g>
  <g>
  <circle fill="#7C7D80" cx="746.7" cy="324.8" r="1.4"></circle>
  <g>
  <path fill="#444444" d="M746.6,445.2c-2.1,0-3.9,1.6-4.1,3.7c0-0.2,0-0.3,0-0.5c0-2.3,1.9-4.2,4.2-4.2c2.3,0,4.2,1.9,4.2,4.2
  c0,0.2,0,0.3,0,0.5C750.5,446.9,748.7,445.2,746.6,445.2z"></path>
  <path fill="#7B7C7F" d="M746.6,445.2c2.1,0,3.9,1.6,4.1,3.7c-0.2,2.1-2,3.7-4.1,3.7c-2.1,0-3.9-1.6-4.1-3.7
  C742.7,446.9,744.4,445.2,746.6,445.2z"></path>
  </g>
  </g>
  </g>
  </g>
  </svg>
</section>
!

CSS 

              
                html,body {height: 100%;}body{display: flex;flex-direction:column;align-items: center;justify-content:center;width:100%;}html{background:#D9D4E2;}

.devicesSVG {
  width: 100%;
  height: 100%;
  overflow: hidden
}

.horizonSVG {
  width: 100%;
  height: 100%;
  overflow: visible
}

svg {
  visibility: hidden;
}
!

JS 

              
                var xmlns = "http://www.w3.org/2000/svg",
  xlinkns = "http://www.w3.org/1999/xlink",
  select = function(s) {
    return document.querySelector(s);
  },
  selectAll = function(s) {
    return document.querySelectorAll(s);
  },
  devicesSVG = select('.devicesSVG'),
  horizonSVG = select('.horizonSVG'),
  desktopSVGContainer = select('.desktopSVGContainer'),
  iPadSVGContainer = select('.iPadSVGContainer'),
  phoneSVGContainer = select('.phoneSVGContainer'),
  desktopSVG = horizonSVG.cloneNode(true),
  iPadSVG = horizonSVG.cloneNode(true),
  phoneSVG = horizonSVG.cloneNode(true);

desktopSVGContainer.appendChild(desktopSVG);
iPadSVGContainer.appendChild(iPadSVG);
phoneSVGContainer.appendChild(phoneSVG);
select('.hz-animation').removeChild(horizonSVG);
desktopSVG.setAttribute('class', 'desktopSVG');
iPadSVG.setAttribute('class', 'iPadSVG');
phoneSVG.setAttribute('class', 'phoneSVG');

var allMountains = selectAll('.allMountains'),
  warmSkyBg = selectAll('.warmSkyBg'),
  smallGroup = selectAll('.smallGroup'),
  medGroup = selectAll('.medGroup'),
  bigGroup = selectAll('.bigGroup'),
  logoSun = selectAll('.logoSun'),
  mainLogoGroup = selectAll('.mainLogoGroup'),
  mainLogoMaskCircle = selectAll('.mainLogoMaskCircle'),
  waterGroup = selectAll('.waterGroup'),
  notifyDisp = selectAll('.notifyDisp');

TweenMax.set('svg', {
  visibility: 'visible'
})

TweenMax.set(desktopSVGContainer, {
  scale: 0.5,
  x: -74,
  y: 6,
  transformOrigin: '50% 50%',
  svgOrigin: '252 270'
});

TweenMax.set(iPadSVGContainer, {
  scale: 0.375,
  x: 74,
  y: 11,
  transformOrigin: '50% 50%',
  svgOrigin: '591 326'
});

TweenMax.set(phoneSVGContainer, {
  scale: 0.185,
  x: 65,
  y: 16,
  transformOrigin: '50% 50%',
  svgOrigin: '746 386'
});

TweenMax.set(allMountains, {
  x: '-=950',
  y: 111
});

TweenMax.set(waterGroup, {
  x: 800,
  y: 311 + 78
});

TweenMax.set('.phoneGroup', {
  x: -725,
  y: 0,
  scale: 1.05,
  transformOrigin: '0% 100%'
});

TweenMax.set('.iPadGroup', {
  x: -92,
  y: 0
});

TweenMax.set('.desktopGroup', {
  x:0,
  y: 0
});

TweenMax.set(mainLogoMaskCircle, {
  attr: {
    r: 560
  }
});

TweenMax.set(logoSun, {
  attr: {
    cy: 100
  }
});

TweenMax.set('#allDevices', {
  scale:1.32,
  svgOrigin:'-10 250'
});

//DEVICE SPECIFIC ANIMATION vv
TweenMax.set(iPadSVG.querySelector('.waterGroup'), {
  y: 500
});

TweenMax.set(iPadSVG.querySelector('.wholeChat'), {
  y: 111
});

TweenMax.set(phoneSVG.querySelector('.wholeChat'), {
  y: 58,
  scale: 0.7,
  transformOrigin: '50% 0%'
});

//DEVICE SPECIFIC ANIMATION ^^
//DEVICE SPECIFIC ANIMATION vv
TweenMax.set(desktopSVG.querySelector('.horizon'), {
  y: '-=40'
});

//DEVICE SPECIFIC ANIMATION ^^
var tl = new TimelineMax({
  paused: true,
  repeat: -1,
  repeatDelay: 1
});

tl.staggerFrom([smallGroup, medGroup, bigGroup], 0.6, {
  y: '+=400',
  ease: Expo.easeOut
}, 0.1, '-=1')
.to(smallGroup, 4, {
    x: -(2 * 1200),
    ease: Power2.easeInOut
  })
  .to(medGroup, 4, {
    x: -(3 * 1858),
    ease: Power2.easeInOut
  }, '-=4')
  .to(bigGroup, 4, {
    x: -(4 * 2676),
    ease: Power2.easeInOut
  }, '-=4')
  .to('.horizon', 1, {
    alpha: 0,
    x: '-=400',
    ease: Power2.easeIn
  }, '-=4')
  .to(waterGroup, 1, {
    x: -1000,
    ease: Power2.easeOut
  }, '-=1.8')
  .to(warmSkyBg, 1.2, {
    alpha: 1,
    ease: Power2.easeOut
  }, '-=2')
  .from(logoSun, 1.2, {
    attr: {
      cx: '+=500'
    },
    ease: Power2.easeOut
  }, '-=2')

.from('.chatPanel', 0.6, {
  scaleY: 0,
  transformOrigin: '50% 100%',
  ease: Power3.easeInOut
}, '-=0.6')

.to('.chatMessage', 0.6, {
    y: '-=50',
    //delay:0.25,
    ease: Anticipate.easeIn
  }, '-=0.6')
  .from('.chat0 rect', 0.2, {
    scaleX: 0.1,
    y: '+=30',
    transformOrigin: '0% 100%',
    ease: Anticipate.easeIn
  }, '-=0.2')

.to('.chatMessage', 0.4, {
    y: '-=50',
    delay: 0.25,
    ease: Anticipate.easeIn
  })
  .from('.chat1 rect', 0.2, {
    scaleX: 0.1,
    y: '+=30',
    transformOrigin: '100% 100%',
    ease: Anticipate.easeIn
  }, '-=0.2')

.to('.chatMessage', 0.4, {
    y: '-=50',
    delay: 0.25,
    ease: Anticipate.easeIn
  })
  .from('.chat2 rect', 0.2, {
    scaleX: 0.1,
    y: '+=30',
    transformOrigin: '100% 100%',
    ease: Anticipate.easeIn
  }, '-=0.2')

.to('.chatMessage', 0.4, {
    y: '-=50',
    delay: 0.25,
    ease: Anticipate.easeIn
  })
  .from('.chat3 rect', 0.2, {
    scaleX: 0.1,
    y: '+=30',
    transformOrigin: '0% 100%',
    ease: Anticipate.easeIn
  }, '-=0.2')

.to('.chatMessage', 0.4, {
    y: '-=50',
    delay: 0.25,
    ease: Anticipate.easeIn
  })
  .from('.chat4 rect', 0.2, {
    scaleX: 0.1,
    y: '+=30',
    transformOrigin: '100% 100%',
    ease: Anticipate.easeIn
  }, '-=0.2')

.to('.chatMessage', 0.4, {
    y: '-=50',
    delay: 0.25,
    ease: Anticipate.easeIn
  })
  .from('.chat5 rect', 0.2, {
    scaleX: 0.1,
    y: '+=30',
    transformOrigin: '0% 100%',
    ease: Anticipate.easeIn
  }, '-=0.2')

.to('.chatPanel', 1, {
    alpha: 0,
    delay: 0
  })
  .to('.chatMessage', 1, {
    y: '-=200',
    alpha: 0,
    ease: Back.easeIn.config(0.6)
  }, '-=1')

.to(mainLogoMaskCircle, 1, {
    attr: {
      r: 203.8
    },
    ease: Power3.easeInOut
  }, '-=0.5')
//DEVICE SPECIFIC ANIMATION vv
.to(iPadSVG.querySelector('.waterGroup'), 1, {
    y: '-=276',
    x: '-=100',
    ease: Power3.easeInOut
  }, '-=1')
  .to(phoneSVG.querySelector('.waterGroup'), 1, {
    y: '-=170',
    x: '-=100',
    ease: Power3.easeInOut
  }, '-=1')
  .to(desktopSVG.querySelector('.waterGroup'), 1, {
    y: '-=170',
    x: '-=100',
    ease: Power3.easeInOut
  }, '-=1')
  //DEVICE SPECIFIC ANIMATION ^^
  //DEVICE SPECIFIC ANIMATION vv
  .to(iPadSVG.querySelector('.mainLogoGroup'), 1, {
    scale: 0.7,
    x: 418,
    y: 326,
    transformOrigin: '0% 0%',
    ease: Power3.easeInOut
  }, '-=1')
  .to(phoneSVG.querySelector('.mainLogoGroup'), 1, {
    scale: 0.7,
    x: 416,
    y: 326,
    transformOrigin: '0% 0%',
    ease: Power3.easeInOut
  }, '-=1')
  .to(desktopSVG.querySelector('.mainLogoGroup'), 1, {
    scale: 0.7,
    x: 416,
    y: 290,
    transformOrigin: '0% 0%',
    ease: Power3.easeInOut
  }, '-=1')
  //DEVICE SPECIFIC ANIMATION ^^
  .to(logoSun, 1, {
    attr: {
      cy: 215,
      r: 75.3
    },
    ease: Anticipate.easeOut
  }, '-=1')
  .set('.horizon', {
    x: 0
  })
  .to(mainLogoGroup, 1, {
    alpha: 0,
    delay: 0,
    ease: Power1.easeIn
  })
  .to('.horizon', 1, {
    alpha: 1,
    ease: Power2.easeIn
  });

tl.timeScale(0.4);
tl.play(0);
!
999px

Console