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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div class="container">
  <svg class="mountains" width="100%" viewBox="0 0 2000 400">
   <defs>
    <style type="text/css">
      .mount3 {fill:#17516b}
      .mount2 {fill:#124156}
      .mount4 {fill:#0e3141}
      .mount1 {fill:#1b6180}
      .snow {fill:white}
    </style>
    <filter id="fireblur" x="0" y="0">
      <feGaussianBlur in="SourceGraphic" stdDeviation="3" />
    </filter>
     <linearGradient id="firegradient">
       <stop offset="5%"  stop-color="#fd4"/>
       <stop offset="95%" stop-color="red"/>
     </linearGradient>
     <linearGradient id="water">
       <stop offset="5%"  stop-color="#CBA8C2"/>
       <stop offset="95%" stop-color="#46B0EA"/>
     </linearGradient>
   </defs>
   <g id="mounts">
    <path class="mount1" d="M0 275 150 250 550 100 800 250 1200 150 1500 25 2000 300 2000 400 0 400"/>
    <path class="snow" d="M 495 120 550 100 600 130 575 125 550 130 535 115"/>
    <path class="snow" d="M 1380 75 1500 25 1635 100 1550 75 1500 85 1450 75"/> 
    <path class="mount3" d="M0 350 350 225 500 300 800 200 1000 275 1250 200 1500 250 1850 175 2000 250 2000 400 0 400"/>
    <path class="mount2" d="M0 400 650 250 900 300 1550 250 2000 300 2000 400"/>
    <path class="mount4" d="M0 350 450 300 800 350 1200 300 1500 350 1750 275 2000 200 2000 400 0 400"/>
    <symbol id="trees-group">
      <use xlink:href="#tree" fill="#163546" x="1500" y="250"/>
      <use xlink:href="#tree" fill="#1E1F26" x="1530" y="240"/>
      <use xlink:href="#tree" fill="#1E1F26" x="1510" y="245"/>
      <use xlink:href="#tree" fill="#163546" x="1520" y="245"/>
      <use xlink:href="#tree" fill="#226282" x="1510" y="255"/>
      <use xlink:href="#tree" fill="#226282" x="1535" y="250"/>
    </symbol>
    <g>
      <use xlink:href="#trees-group" y="5"/>
      
      <use xlink:href="#campfire" x="3075" y="545" transform="scale(0.5)" filter="url(#fireblur)"/>
      
      <use xlink:href="#trees-group" x="45" y="15"/>
      
      <g class="lake" fill="url(#water)">
        <ellipse cx="1480" cy="300" rx="80" ry="10"/>
        <ellipse cx="1430" cy="305" rx="50" ry="6"/>
      </g>  
      
      <use xlink:href="#trees-group" transform="translate(2990,-35) scale(-1,1.3)"/>
    </g>
    <g id="sendit">  
    <use xlink:href="#bear" fill="#1B0D03" x="3880" y="350" transform="scale(0.5)"/>
    </g>  
   </g>
  </svg>
  <div class="sunrise">
    <div class="sun"></div>
    <div class="star" id="ray"></div>
  </div>
  
  <svg class="baloon">
    <g id="baloon">
      <circle cx="50" cy="50" r="20" fill="#29ABE2"/>
      <polygon points="34 62 66 62 56 75 45 75" fill="#29ABE2"/>
      <path d="M45 75 Q 20 40 50 30 Q 37 40 48 75" fill="crimson"/>
      <path d="M56 75 Q 80 40 50 30 Q 63 40 53 75" fill="crimson"/>
      <rect x="44" y="78" width="14" height="10" ry="5" fill="#1D1E22"/>
    </g>  
  </svg>
  
  <svg class="birds" width="100px" height="100px" viewbox="-5 -5 100 100">
    <style>
    </style>  
    <symbol id="bird" viewbox="-5 -5 100 100">
      <path class="wing" d="M 15 0 Q 10 0 20 10 Q 10 7 5 0" fill="#1E1F26"/>
      <path class="wing" d="M 5 0 Q 5 10 10 10 Q 10 3 15 0" fill="#5A5E72"/>
      <path class="corpus" d="M 0 0 15 -1 15 1" fill="#1E1F26"/>
    </symbol>
    <g id="birds">
      <use xlink:href="#bird" x="0" y="0" transform="scale(0.9)"/>
      <use xlink:href="#bird" x="10" y="20"/>
      <use xlink:href="#bird" x="30" y="15" transform="scale(0.8)"/>
    </g>  
  </svg>
  
  <div class="invisible">
  <svg id="tree">
    <symbol id="cone">
     <polygon points="6 0 0 5 12 5"/>
    </symbol>
    <g>
      <use xlink:href="#cone" x="10"/>
      <use xlink:href="#cone" x="7" y="3" transform="scale(1.2)"/>
      <use xlink:href="#cone" x="4" y="5" transform="scale(1.5)"/>
      <use xlink:href="#cone" x="3" y="7" transform="scale(1.7)"/>
      <use xlink:href="#cone" x="1.5" y="8" transform="scale(2)"/>
    </g>  
  </svg>
  
  <svg id="bear">
  <g>
  <path d="
           M10 25
           18 22
           20 20
           30 20
           40 22
           55 30
           80 30
           90 40
           92 50
           90 60
           92 75
           85 80
           70 80
           70 75
           75 70
           70 60
           62 62
           50 62
           48 75
           45 80
           35 80
           30 75
           35 72
           32 60
           30 50
           25 38
           15 35
           10 30">
<animate id="bearhead" dur="3s" begin="3s;bearhead.end+5s" attributeName="d" fill="freeze" values="
           M10 25
           18 22
           20 20
           30 20
           40 22
           55 30
           80 30
           90 40
           92 50
           90 60
           92 75
           85 80
           70 80
           70 75
           75 70
           70 60
           62 62
           50 62
           48 75
           45 80
           35 80
           30 75
           35 72
           32 60
           30 50
           25 38
           15 35
           10 30;
           
           M12 20
           20 18
           22 17
           30 18
           40 22
           55 30
           80 30
           90 40
           92 50
           90 60
           92 75
           85 80
           70 80
           70 75
           75 70
           70 60
           62 62
           50 62
           48 75
           45 80
           35 80
           30 75
           35 72
           32 60
           30 50
           25 38
           15 30
           12 25;
          
          M10 25
           18 22
           20 20
           30 20
           40 22
           55 30
           80 30
           90 40
           92 50
           90 60
           92 75
           85 80
           70 80
           70 75
           75 70
           70 60
           62 62
           50 62
           48 75
           45 80
           35 80
           30 75
           35 72
           32 60
           30 50
           25 38
           15 35
           10 30;"/>
    </path>
  </g>  
</svg>
    
<svg id="campfire">
  <g>
  <path d="M15 30 C 0 25 20 20 15 10 Q 30 20 15 30" fill="url(#firegradient)">
  <animate id="fire" dur="2s" repeatCount="indefinite" attributeName="d" fill="freeze" values="M15 30 C 0 25 20 20 15 10 Q 30 20 15 30; M15 30 C 0 25 20 20 10 10 Q 30 20 15 30; M15 30 C 0 25 20 20 15 10 Q 30 20 15 30"/></path>  
  </g>  
</svg>     
    
 </div>
  
   <p id="speech">SEND IT!</p>
 
  <div class="credits">
    <a href="http://webmassa.ru" target="_blank"><p style="text-align:right">Clean SVG code by <img style="width:15px; margin-bottom:-2px;" src="http://webmassa.ru/wp-content/uploads/2018/12/Favicon.png"></img> <span style="color:#C85050;">Webmassa</span></p></a>
  </div>  
  
</div>
!

CSS 

              
                body {
  margin: 0;
}

p {
  font-family: 'Open Sans', sans-serif;
  color: #fff;
  font-size: 15px;
}

a {
  text-decoration: none;
}

.container {
  position: absolute;
  height: 100%;
  width: 100vw;
  background: radial-gradient(at bottom, #BD76A8 30%, #46B0EA 100%);
}

.invisible {
  display: none;
}

.mountains {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  width: 100%;
  opacity: .95;
}

.sunrise {
  position: absolute;
  z-index: 1;
  bottom: 15vh;
  left: 50%;
  margin-left: -100px;
}

.sun {
  width: 200px;
  height: 200px;
  background: #fffff3;
  border-radius: 50%;
  filter: blur(25px);
  opacity: .75;
 }

@keyframes pulse {
    0% {
     transform: scale(1, 1);
    }

    50% {
     transform: scale(1.1, 1.1);
    }

    100% {
    transform: scale(1, 1);
    }
}

.sunrise {
    animation: pulse 5s linear infinite;
}

.star {
  position: absolute;
  bottom: -50px;
  left: -50px;
  width: 300px;
  height: 300px;
  background: #fff;
  opacity: .025;
  clip-path: polygon(100% 0, 58% 50%, 100% 100%, 50% 58%, 0 100%, 48% 50%, 0 0, 50% 48%);
}

#ray {
  transform: rotate(60deg);
}

.baloon {
  position: absolute;
  z-index: 3;
  left: 20vw;
  bottom: 35vh;
  animation: float 10s linear infinite;;
}

@keyframes float {
	0% {
		transform: translateY(0px);
	}
	50% {
		transform: translateY(-20px);
	}
	100% {
		transform: translateY(0px);
	}
}

.birds {
  z-index: 4;
  position: absolute;
  bottom: 45vh;
  animation: flying 30s linear infinite;
}

@keyframes flying {
	0% {
		transform: translate(100vw, 0);
	}
  50% {
		transform: translate(50vw, 50px);
	}
	100% {
		transform: translate(-2vw, 0);
	}
}

.wing {
  animation: swing 2s linear infinite;
}

@keyframes swing {
	0% {
		transform: scale(1);
	}
	50% {
		transform: scale(1,-.5);
	}
	100% {
		transform: scale(1);
	}
}

#sendit:hover {
  cursor: pointer;
}

#speech {
  opacity: 0;
  padding: 10px;
  position: absolute;
  z-index: 5;
  right: 2.5vw;
  bottom: 20vh;
  transition: .5s ease-in-out;
}

.credits {
  position: fixed;
  z-index: 6;
  bottom: 0;
  right: 15px;
}

.credits p {
  font-size: 12px;
  color: #226182;
}

@media screen and (max-width: 1280px) {
  .sunrise {
    bottom: 5vh;
  }
  .sun {
    transform: scale(0.6,0.6);
  }
  .star {
    width: 150px;
    height: 150px;
    bottom: 30px;
    left: 30px;
  }
  .mountains {
    width: 150%;
  }
}

@media screen and (max-width: 760px) {
  .sunrise {
    bottom: 2vh;
  }
  #baloon {
    transform: scale(0.8,0.8);
  }
  #birds {
    transform: scale(0.8,0.8);
  }
  .mountains {
    width: 200%;
  }
}

@media screen and (max-width: 480px) {
  .sunrise {
    bottom: 1vh;
  }
  #baloon {
    transform: scale(0.5,0.5);
  }
  #birds {
    transform: scale(0.5,0.5);
  }
}
!

JS 

              
                $("#bear").hover(function(){
  $("#speech").css("opacity", "1");
  }, function(){
  $("#speech").css("opacity", "0");
});

$( function() {
    $( ".baloon").draggable();
} );
!
999px

Console