style.css

* {
    margin: 0;
    padding: 0;
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}

header {
    text-align: center;
    background-color: gray;
    color: white;
    padding: 10px;
    height: 10vh; /* Usando unidade relativa */
}

main {
    display: block;
    background-color: lightgray;
    height: 80vh; /* Usando unidade relativa */
}

#forms {
    display: flex;
    flex-direction: column; /* Empilhando os formulários verticalmente */
    justify-content: center;
}

#formEntrada,
#formSaida {
    align-self: center;
    text-align: center;
    margin: 10px;
    background-color: lightblue;
    padding: 10px;
    border-radius: 10px;
    max-width: 300px;
}

#formEntrada #valor {
    border-radius: 4px;
    color: black;
    display: block;
    margin: 10px auto;
}

#buttonConfirma {
    max-width: 100px;
    align-self: center;
    padding: 10px;
    border-radius: 10px;
    background-color: gray;
    color: white;
}
#SAIDA{
    padding: 10px;
}
footer {
    background-color: gray;
    width: 100%;
    height: 10vh; /* Usando unidade relativa */
    padding: 10px;
    text-align: center;
}

footer p {
    color: white;
}