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              <article>
  <h1>Super Cheap Lightbox</h1>
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>

  <picture>
    <img src="http://fillmurray.com/1280/720" alt="bill murray"/>
  </picture>

  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>

  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>

  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>

  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>

  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>

  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>

  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatibus temporibus sequi repudiandae similique voluptates, earum nisi! Iure suscipit, aperiam assumenda autem vel, dolor, perferendis officia corrupti expedita ab dolorum, blanditiis!</p>
</article>
            
          
!
            
              article {
  width: 95%;
  max-width: 40em;
  margin: 2em auto;
}

img {
  max-width: 100%;
}

.lightbox {
  position: fixed;
  left: 0;
  top: 0;
  display: flex;
  height: 100vh;
  width: 100vw;
  background: rgba(0,0,0,0.8);
  
  img {
    width: auto;
    height: auto;
    max-width: 90vw;
    max-height: 90vh;
    margin: auto;
  }
}

picture {
  transition: background 0.2s ease-out;
  display: inline-block;
  
  img {
    // hm. this isn't transitioning. idk.
    transition: margin 2s;
  }
}
            
          
!
            
              var pictures = document.querySelectorAll('article picture');

pictures.forEach(function( pic ){
  pic.addEventListener('click', function( e ){
     this.classList.toggle('lightbox');
  });
});

            
          
!
999px
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