;
      transition: .5s ease-in-out;
      opacity: 0;
    }
    .right-heart::before {
      content: '';
      position: absolute;
      top: 0px;
      right: 0px;
      width: 0;
      height: 0;
      border-top: 15px solid transparent;
      border-bottom: 15px solid currentColor;
      border-left: 15px solid transparent;
      border-right: 15px solid currentColor;
      transform: translate(-19px, 0px);
    }
  </style>
</head>
<body>
  <div class="container">
    <a href="#" class="btn">Like</a>
 