.buttonVoltar {
 
    font-family: 'Nunito', sans-serif;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.3px;
    font-weight: 700;
    color: #313133;
    background: #092b5a;
    border: none;
    border-radius: 1000px;
    box-shadow: 12px 12px 24px #092b5a;
    transition: all 0.3s ease-in-out 0s;
    cursor: pointer;
    outline: none;
    position: relative;
    padding: 10px;
    }
  
  .buttonVoltar::after {
  content: '';
    border-radius: 1000px;
    min-width: calc(80px + 12px);
    min-height: calc(60px + 12px);
    border: 6px solid #adc4e4;
    box-shadow: 0 0 60px #092b5a;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: all .3s ease-in-out 0s;
  }
  
  .buttonVoltar:hover, .buttonVoltar:focus {
    color: #092b5a;
    transform: translateY(-6px);
  }
  
  .buttonVoltar:hover::before, .buttonVoltar:focus::before {
    opacity: 5;
  }
  
  .buttonVoltar::after {
    content: '';
    width: 5px; height: 5px;
    border-radius: 100%;
    border: 6px solid #092b5a;
    position: absolute;
    z-index: -1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ring 1.5s infinite;
  }
  
  .buttonVoltar:hover::after, .buttonVoltar:focus::after {
    animation: none;
    display: none;
  }
  
  @keyframes ring {
    0% {
      width: 30px;
      height: 30px;
      opacity: 1;
    }
    100% {
      width: 90px;
      height: 90px;
      opacity: 0;
    }
  }