*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    margin-top: 7%;
    width: 100%;
    height: 100%;
    background-color: #2c9f7d;
    font-family: 'Courier New', Courier, monospace;
    color: lightgreen;
    display: flex;
    justify-content: center;
    text-align: center;
}
section{
    width: 50%;
    height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
h1{
    font-family: 'Orbitron';
    color: rgb(218, 165, 32);
    font-size: 30px;
}
.norm{
    margin-top: 25px;
    padding: 35px;
}
span{
    margin-top: 25px;
    font-family: 'Orbitron';
    font-size: 8em;
    color: rgb(218, 165, 32);
    font-weight: bold;
}

h4{
    font-family: 'Orbitron';
    margin-top: 25px;
}
.mensagem {
    display: none;
    animation: show-down .6s ease;
}
@keyframes show-down
{
    from {transform: translateY(-100%);}
    to {transform: translateY(0); }
}