*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
html{
    font-size: 62.5%;
}
html,body{
    width: 100%;
    height: 100%;
}
.main-conteiner{
    width: 100%;
    height: 100%;
    font-size: 5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}