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    Pounding heart animation 
  
        
  
    
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  | /* Pounding heart animation */ | |
| @keyframes pound { | |
| to { transform: scale(1.4); } | |
| } | |
| .heart { | |
| display: inline-block; | |
| font-size: 150px; | |
| color: #e00; | |
| animation: pound .25s infinite alternate; | |
| transform-origin: center; | |
| } | |
| body { text-align: center; } | 
  
    
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  | <div class="heart">♥</div> | 
  
    
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  | // alert('Hello world!'); | 
  
    
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  | {"view":"split","fontsize":"100","seethrough":"","prefixfree":"1","page":"css"} | 
  
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