/* From Uiverse.io by mi-series */ 
.btn {
    outline: 0;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    background: #40B3A2;
    min-width: 140px;
    border: 0;
    height: 50px;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .1);
    box-sizing: border-box;
    padding: 16px 20px;
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: lowercase;
    overflow: hidden;
    cursor: pointer;
  }
  
  .btn:hover {
    opacity: .95;
  }
  
  .btn .animation {
    border-radius: 100%;
    animation: ripple 0.6s linear infinite;
  }
  
  @keyframes ripple {
    0% {
      box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.1), 0 0 0 20px rgba(255, 255, 255, 0.1), 0 0 0 40px rgba(255, 255, 255, 0.1), 0 0 0 60px rgba(255, 255, 255, 0.1);
    }
  
    100% {
      box-shadow: 0 0 0 20px rgba(255, 255, 255, 0.1), 0 0 0 40px rgba(255, 255, 255, 0.1), 0 0 0 60px rgba(255, 255, 255, 0.1), 0 0 0 80px rgba(255, 255, 255, 0);
    }
  }