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HTML

            
              <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/392/redwood-ukulele-top.jpg" alt="ukulele">
            
          
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CSS

            
              img { display: block; width: 90%; }

img {
  -webkit-filter: brightness(3);
  filter: brightness(3);
}
            
          
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JS

            
              
            
          
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