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HTML

              
                <input id="trigger" class="toggle-checkbox" type="checkbox"><label for="trigger">Throw the Switch</label>

<div class="bracket"><svg xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" clip-rule="evenodd" viewBox="0 0 337 334"><path fill="#b7b0b0" d="M217 296h25v-48h24v-34h27v-62h22V47h22V0H0v47h22v105h22v62h27v34h23v48h26v38h97v-38zm-38 1v10h-22v-10h-9v-22h9v-9h22v9h10v22h-10z"/></svg><div class="bracketbottom"></div></div>
<div class="shrinkray"><svg xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" clip-rule="evenodd" viewBox="0 0 958 383"><path fill="#696969" d="M289 28l196-1v327H290l-1-326z"/><path fill="#3d5070" d="M758 147h33v20h45v11h87v23h-87v12h-45v19h-33v28h-63V119h63v28z"/><path fill="#404040" d="M329-4l1 392-258 1v-34H51v-25H27v-27H1L0 81h26V53h24V28h21V-3l258-1z"/><path fill="#b0b0b0" d="M502 52l165-1v28l32-1 1 223h-33v27l-175 1 10-277z"/><path fill="#9f5f3a" d="M478 11h24v359h-24V11zM686 62h14v257h-14V62zM745 103h13v175h-13V103zM784 131h14v119h-14V131zM824 153h14v75h-14v-75zM940 166h8v9h9v29h-9v9h-8v8h-28v-8h-9v-9h-9v-29h9v-9h9v-8h28v8z"/></svg><div class="beam"></div></div>
<div class="scientist"><svg xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" clip-rule="evenodd" viewBox="0 0 208 374"><g transform="matrix(1.08695 0 0 1.04752 -4822 -2524)"><path fill="#3d5070" fill-rule="nonzero" d="M4491 2723v-71h81v23h1v48h-37v-39h-9v39h-36z"/><path fill="#60422d" fill-rule="nonzero" d="M4436 2584h33v35h-33zM4627 2584h-36v29h36z"/><path fill="#43703d" fill-rule="nonzero" d="M4591 2551h9v10h9v9h9v10h9v9h-27v15h-9v-9h-9v-6h-10v63h-81v-63h-55v-10h9v-9h9v-9h9v-10h9v-9h119v9z"/><path fill="#2d2d2d" fill-rule="nonzero" d="M4491 2645h81v9h-81zM4527 2766h-59v-36h23v-11h36v47zM4536 2719h37v11h23v36h-60v-47z"/><path fill="#60422d" fill-rule="nonzero" d="M4509 2525h45v26h-45z"/><path fill="#fff" fill-rule="nonzero" d="M4570 2542h21v9h9v10h9v9h9v10h9v9h-27v15h-9v-9h-9 1v67h2v37h-42v-5h-7v-27h-2v-49h2v-31h4v-11h1v-13h2v-11h3v-13h24v3zM4500 2542v-3h21v13h2v11h3v13h3v13h1v11h1v36h-4v48h-6v13h-21v8h-33v-18h4v-18h7v-17h5v-16h1v-47h-48v-10h9v-9h9v-9h9v-10h9v-9h28z"/><path fill="#1b1006" fill-rule="nonzero" d="M4563 2419h10v28h-82v-28h8v-10h64v10z"/><path fill="#7c5439" fill-rule="nonzero" d="M4564 2438h13v18h14v29h-10v28h-8v9h-9v10h-18v10h-28v-10h-18v-10h-9v-9h-10v-28h-9v-29h14v-18h14v-10h64v10z"/><path fill="#fff" fill-rule="nonzero" d="M4536 2447h31v29h-31zM4500 2447h27v29h-27z"/>
  <path class="mouth" fill="#493222" fill-rule="nonzero" d="M4518 2504h27v9h-27z"/><g class="eyes"><path id="rteye" fill="#444445" fill-rule="nonzero" d="M63 45h9v9h-9z" transform="matrix(1.01311 0 0 1.05124 4454 2409)"/><path id="lteye" fill="#444445" fill-rule="nonzero" d="M108 36h9v9h-9z" transform="matrix(1.01311 0 0 1.05124 4447 2419)"/></g><path fill="#1b1006" fill-rule="nonzero" d="M4573 2438h9v37h-9zM4481 2438h10v37h-10z"/><path fill="#342217" d="M4529 2444h38l1 1 16 7v5h-2l-14-6v27l-1 2h-33l-1-2v-15h-3v15l-1 2h-33l-1-2v-27l-14 6h-2v-5l16-7 1-1h33zm-32 2v31h31v-31h-31zm69 0h-31v31h31v-31zm-33 0h-3v15h3v-15z"/><path fill="#1b1006" fill-rule="nonzero" d="M4577 2438h5v37h-5zM4481 2438h5v37h-5z"/><path fill="#60422d" fill-rule="nonzero" d="M4527 2466h9v28h-9z"/><path fill="silver" d="M4546 2586v40h-30v-7h-11l-1-1v-23l1-1h11v-8h30zm-30 30v-20h-10v20h10z"/><path fill="#fff" fill-rule="nonzero" d="M4523 2598v5h-2 1v-2h-3v2h1-2 1v-4h-1v-1h2v1h-1v1h3v-1h-1v-1h2zM4528 2603h-4v-3h1v3h1v-1h1v-2h-1 2v3zM4532 2600h3v3h-2 1v-3h-1v1h-1v2h1-2v-3 1h-1v2h1-2v-3h3zM4538 2601v-1h-1v1h1zm1 0v1h-2v1h1v-1h1v1h-3v-3h3v1zM4542 2601v1-2h1v1h-1v3h-1v1h-1v-1h1v-3h-1v-1h2-1v1h1zM4525 2605v1h1v1h-1v2h1v1h-2v-3h-1v-1h1v-1h1zM4529 2608v-1h-2v1h2zm0-1h1v1h-3v1h3-1v1h-2v-1h-1v-2h1v-1h2v1zM4533 2606v1h-2v2h2v1h-2v-1h-1v-2h1v-1h2zM4538 2607v3h-2v-1h1v-2h-2v2h1v1h-2v-5h1v2h1v-1h1v1h1z"/><g><path fill="#7c5439" fill-rule="nonzero" d="M4497 2588h8v9h6v19h-6v9h-27v-7h-35v-23h35v-7h1v-2h18v2z"/></g><g><path fill="#7c5439" fill-rule="nonzero" d="M4582 2601h45v28h-9v10h-18v-10h-9v-19h-9v-9z"/></g></g></svg></div>
<div class="z"><svg xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" clip-rule="evenodd" viewBox="0 0 277 497"><path fill="#443030" d="M197 329v145h-52v-90h-14v90H79V329h118z"/><path fill="#91c1a3" fill-rule="nonzero" d="M0 250h52v33H0zM276 250h-52v33h52z"/><path fill="#886546" d="M65 250v13H40v-13H0v-13h13v-13h13v-13h13v-14h14v-13h171v13h13v14h13v13h13v13h13v13h-39v13h-26v-13l-14 1v76H79v-76l-11-1h-3z"/><path fill="#4d4c4c" d="M79 322h118v13H79z"/><path fill="#232323" fill-rule="nonzero" d="M79 448v-17h53v66H46v-49h33zM197 448h33v49h-85v-66h52v17z"/><path fill="#9cd3b3" fill-rule="nonzero" d="M13 263h66v13H65v27H53v13H26v-13H13v-13H0v-14h13v-13zM197 263h66v13h13v14h-13v13h-13v13h-27v-13h-12v-27h-14v-13z"/><path fill="#91c1a3" fill-rule="nonzero" d="M105 171h66v26h-66z"/><path fill="#3a3a3a" fill-rule="nonzero" d="M183 13h14v26H79V13h12V0h92v13z"/><path fill="#9cd3b3" fill-rule="nonzero" d="M185 39h12v27h27v40h-14v39h-13v13h-12v13h-26v13h-41v-13H92v-13H79v-13H66v-39H53V66h26V39h13V26h93v13z"/><g id="lefteye"><path fill="#fbeb8e" fill-rule="nonzero" d="M99 36h9v9h-9z" transform="matrix(4.90707 0 0 4.46262 -341 -108)"/><path fill="#444445" fill-rule="nonzero" d="M108 36h9v9h-9z" transform="scale(1.46262)"/></g><g id="righteye"><path fill="#fbeb8e" fill-rule="nonzero" d="M63 36h9v9h-9z" transform="matrix(4.35151 0 0 4.46262 -182 -108)"/><path fill="#444445" fill-rule="nonzero" d="M63 45h9v9h-9z" transform="scale(1.46262)"/></g><path fill="#758b7c" fill-rule="nonzero" d="M118 132h40v13h-40z"/><path fill="#91c1a3" fill-rule="nonzero" d="M132 79h13v39h-13z"/><path fill="#3a3a3a" fill-rule="nonzero" d="M197 39h14v53h-14zM66 39h13v53H66z"/></svg></div>
<div class="stage"></div>



<div class="logo"><a href="https://undead.institute" target="_blank"><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1804713/UndeadInsti-LogoOnWhite.png" alt="Getting Braaains should be fun"></a></div>
              
            
!

CSS

              
                .toggle-checkbox:checked ~ .shrinkray .beam { 
  animation: 5s ease-in-out 0s beamer forwards;
}
.shrinkray .beam {
  opacity: 0;
}
@keyframes beamer {
  0% { opacity: 0;}
  1%, 99% { opacity: 1; }
  20% {
    transform: scaleX(1);
  }
  100% { opacity: 0; transform: scaleX(0.9);}
}

.toggle-checkbox:checked ~ .scientist .eyes { 
  animation: 5s ease-in-out 0s lookup forwards;
}
.eyes {
    transform: translateY( 0 );
}
@keyframes lookup {
  0%, 60% {
    transform: translateY( 0 );
  }
  100% {
    transform: translateY( -0.5vw );
  }
}
.toggle-checkbox:checked ~ .scientist .mouth{ 
  animation: 5s ease-in-out 0s ohhh forwards;
}
.toggle-checkbox:checked ~ .z svg {
  animation: 5s ease-in-out 0s reverseshrinkydink forwards;
}
@keyframes reverseshrinkydink {
  0%, 20% {
    transform: scale(0.2);
    filter: drop-shadow(0 0 0.5vw yellow) drop-shadow(0 0 1vw yellow);
  }
  99% {
    filter: drop-shadow(0 0 0.5vw yellow) drop-shadow(0 0 1vw yellow);
  }
  100% {
    transform: scale(1);
    filter: none;
  }
}
.bracket {
  width: 10vw;
  position: absolute;
  bottom: 40vw;
  left: 15vw;
  z-index: 10;
}
.bracketbottom {
  height: 100vh;
  width: 10vw;
  background-color: #b7b0b0;
  position: absolute;
  top: -100vh;
  
}
.shrinkray {
  width: 25vw;
  position: absolute;
  bottom: 37vw;
  left: 15vw;
  transform-origin: 20% 50%;
  transform: rotate(25deg);
  z-index: 9;
}
.beam {
  position: absolute;
  width: 43vw;
  height: 0.5vw;
  bottom: 5.05vw;
  left: 24vw;
  background-color: yellow;
  z-index: -1;
  box-shadow: 0 0 0.5vw yellow, 0 0 0.5vw yellow;
}
.scientist {
  width: 15vw;
  position: absolute;
  bottom: 1vw;
  left: 15vw;
}
.z {
  width: 75vw;
  position: absolute;
  bottom: 3.5vw;
  right: -15vw;
}
.z svg {
  transform-origin: center bottom;
  transform: scale(0.2);
}
.stage {
  width: 30vw;
  background-color: darkslategray;
  height: 5vw;
  position: absolute;
  bottom: -1vw;
  right: 7.5vw;
  z-index: 0;
}
body {
  background-color: lightskyblue;
  overflow: hidden;
}

.logo {
  width: 100%;
  max-width: 400px;
  position: absolute;
  top: 0;
  right: 0;
}
.logo img {
  width: 100%;
}
input{
  display: none;
}
input:checked + label {
  box-shadow: inset 3px 3px 2px #660000;
  transform: translate(3px, 3px);
}
label {
  font-size: 1.5em;
  color: #FFF;
  background-color: #960B0B;
  width: 200px;
  height: 30px;
  text-align: center;
  font-weight: bold;
  display: block;
  border-radius: 7px;
  box-shadow: 3px 3px 0 #660000;
  cursor: pointer;
  position: relative;
  z-index: 1000;
}
              
            
!

JS

              
                
              
            
!
999px

Console