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<html>
   <head>
      <style>
         #p1 {background-color:rgba(255,0,0,0.3);}
         #p2 {background-color:rgba(0,255,0,0.3);}
         #p3 {background-color:rgba(0,0,255,0.3);}
      </style>
   </head>

   <body>
      <p>Warna RGBA :</p>
      <p id = "p1">Merah</p>
      <p id = "p2">Hijau</p>
      <p id = "p3">Biru</p>
   </body>
</html>

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