.container {
    border: 2px solid purple;
    margin-top: 18px;
    padding: 30px;
    box-shadow: 5px 5px 5px;
}

.ffff, .fibonacciBotao {
    border-radius: 10px;
    background-color: #ffff99;
    border: 2px solid #888888;
    box-shadow: 5px 5px 5px #888888;
    margin: 5px;
    margin-top: 8px;
    height: 100px;
    width: 100px;
    position: relative;
    right: 20px;
    
}

.ffff:hover, .fibonacciBotao:hover {
    border-radius: 10px;
    background-color: #f9f991;
    border: 2px solid #888888;
}

.ffff:active, .fibonacciBotao:active {
    transform: translateY(2px) translateX(2px);
}

.finalInput, .finalFibonacci {
    border: 1px solid gray;
    height: 20px;
    margin: 5px;
}

.collatzTitulo {
  font-size: 20px;
    
}

.collatzSubtitulo {
  font-size: 15px;
}


.coluna-de-1 {
    margin-right: 60px;
}

.respostaCollatz, .respostaFibonacci {
    height: 80px;
}