body{
    height: 98vh;
}

main{
    position: relative;
    max-width: 600px;
    left: 50%;
    top: 40%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

button{
    margin-top: 20px;
    cursor: pointer;
}