html, body{
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: "Roboto Mono";
    background: #e9e9e9;
    color: rgb(0, 0, 0);
}

.main {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

h1 {
    color: rgb(0, 0, 0);
    font-weight: 300;
    font-size: 4rem;
}

h3 {
    font-weight: 200;
    font-size: 2rem;    
}