.btn {
  display: inline-block;
  padding: 10px 20px;
  font-size: 16px;
  font-weight: bold;
  text-align: center;
  color: #fff;
  background-color: #007bff;
  border: none;
  border-radius: 5px;
  box-shadow: 0 2px 0 #0062cc;
  cursor: pointer;
  transition: all 0.3s ease;
}
.btn:hover {
  background-color: #0062cc;
  box-shadow: 0 2px 0 #004eaa;
}
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