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HTML

              
                <svg class="pink-cube" viewBox="0 0 300 230" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <defs>
  <g id="cube" class="cube-unit">
    <rect width="21" height="24" fill="var(--lightColor)" stroke="var(--strokeColor)" transform="skewY(30)"/>
    <rect width="21" height="24" fill="var(--darkColor)" stroke="var(--strokeColor)" transform="skewY(-30) translate(21 24.3)"/>
    <rect width="21" height="21" fill="var(--mainColor)" stroke="var(--strokeColor)" transform="scale(1.41,.81) rotate(45) translate(0 -21)"/>
  </g>
  </defs>
  <line opacity=".5" x1="80" x2="100" y1="150" y2="150" fill="none" stroke-width="1" stroke-linecap="round" stroke="var(--lightColor)" stroke-dasharray="2.5" />
   <line opacity=".5" x1="186" x2="204" y1="90" y2="90" fill="none" stroke-width="1" stroke-linecap="round" stroke="var(--lightColor)" stroke-dasharray="2.5" />
   <line opacity=".5" x1="115" x2="115" y1="75" y2="85" fill="none" stroke-width="1" stroke-linecap="round" stroke="var(--lightColor)" stroke-dasharray="2.5" />
    <use xlink:href="#cube" x="121" y="112"/>
    <use xlink:href="#cube" x="100" y="124"/>
    <use xlink:href="#cube" x="142" y="124"/>
    <use xlink:href="#cube" x="121" y="136"/>
    <use class="m-left" xlink:href="#cube" x="79" y="136"/>
    <use xlink:href="#cube" x="163" y="136"/>
    <use xlink:href="#cube" x="142" y="148"/>
    <use xlink:href="#cube" x="100" y="148"/>
    <use xlink:href="#cube" x="121" y="160"/>
    <use xlink:href="#cube" x="121" y="88"/>
    <use xlink:href="#cube" x="100" y="100"/>
    <use xlink:href="#cube" x="142" y="100"/>
    <use xlink:href="#cube" x="121" y="112"/>
    <use xlink:href="#cube" x="79" y="112"/>
    <use xlink:href="#cube" x="163" y="112"/>
    <line opacity=".5" x1="165" x2="185" y1="155" y2="155" fill="none" stroke-width="1" stroke-linecap="round" stroke="var(--lightColor)" stroke-dasharray="2.5" />
    <use class="m-right" xlink:href="#cube" x="142" y="124"/>
    <use xlink:href="#cube" x="100" y="124"/>
    <use xlink:href="#cube" x="121" y="136"/>
    <use xlink:href="#cube" x="121" y="64"/>
    <use class="m-up" xlink:href="#cube" x="100" y="76"/>
    <use xlink:href="#cube" x="142" y="76"/>
    <use xlink:href="#cube" x="121" y="88"/>
    <use xlink:href="#cube" x="79" y="88"/>
    <use class="m-right" xlink:href="#cube" x="163" y="88"/>
    <use xlink:href="#cube" x="142" y="100"/>
    <use xlink:href="#cube" x="100" y="100"/>
    <use xlink:href="#cube" x="121" y="112"/>
  </svg>
  <p>hover over me</p>

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" class="blue-cube" viewBox="0 -40 300 200">
    <line opacity=".5" x1="96" x2="110" y1="45" y2="45" fill="none" stroke-width="1" stroke-linecap="round" stroke="var(--lightColor)" stroke-dasharray="2.5" />
    <line opacity=".5" x1="190" x2="205" y1="45" y2="45" fill="none" stroke-width="1" stroke-linecap="round" stroke="var(--lightColor)" stroke-dasharray="2.5" />
    <use xlink:href="#cube" x="121" y="48"/>
    <use xlink:href="#cube" x="121" y="24"/>
    <use xlink:href="#cube" x="121" y="0"/>
    <use xlink:href="#cube" x="100" y="60"/>
    <use class="m-left" xlink:href="#cube" x="100" y="36"/>
    <use class="m-left" xlink:href="#cube" x="100" y="12"/>
    <use xlink:href="#cube" x="142" y="60"/>
    <use xlink:href="#cube" x="142" y="36"/>
    <use xlink:href="#cube" x="142" y="12"/>
    <g class="m-right">
      <use xlink:href="#cube" x="163" y="72"/>
      <use xlink:href="#cube" x="163" y="48"/>
      <use xlink:href="#cube" x="163" y="24"/>
    </g>
    <g class="m-left">
      <use xlink:href="#cube" x="79" y="72"/>
      <use xlink:href="#cube" x="79" y="48"/>
      <use xlink:href="#cube" x="79" y="24"/>
    </g>
    <use xlink:href="#cube" x="121" y="72"/>
    <use xlink:href="#cube" x="121" y="48"/>
    <use xlink:href="#cube" x="121" y="24"/>
    <use xlink:href="#cube" x="100" y="84"/>
    <g class="m-left">
      <use xlink:href="#cube" x="100" y="60"/>
      <use xlink:href="#cube" x="100" y="36"/>
    </g>
    <use xlink:href="#cube" x="142" y="84"/>
    <use xlink:href="#cube" x="142" y="60"/>
    <use xlink:href="#cube" x="142" y="36"/>
    <use xlink:href="#cube" x="121" y="96"/>
    <use xlink:href="#cube" x="121" y="72"/>
    <use xlink:href="#cube" x="121" y="48"/>
  </svg>
  <p>hover over me</p>
              
            
!

CSS

              
                body { font-family: 'Roboto', sans-serif; margin: 0 auto; max-width: 500px; }

.cube-unit {
  fill-opacity: .9;
  stroke-miterlimit:0;
}
.blue-cube {
  --mainColor: #009CDE;
  --strokeColor: #0079ad;
  --lightColor: #00affa;
  --darkColor: #008bc7;
}
.pink-cube {
  --mainColor: #de0063;
  --strokeColor: #ad004e;
  --lightColor: #fa0070;
  --darkColor: #c7005a;
}

@keyframes moveX {
  to { transform: translateX(var(--translate, 35px)); }
}
@keyframes moveY {
  to { transform: translateY(var(--translate, -35px)); }
}

.m-left, .m-right { 
  animation: 2s moveX alternate infinite paused; 
}
.m-up, .m-down { 
  animation: 2s moveY alternate infinite paused; 
}
.m-left { --translate: -50px; }
.m-right { --translate: 50px; }

svg:hover * { animation-play-state: running; }
              
            
!

JS

              
                
              
            
!
999px

Console