body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
header{
    align-self: center;
    color: aliceblue;
    text-align: center;
}
header > h1 {font-size: 100px;}
header > h2 {font-size: 50px;}
main{
    margin-top: -50px;
    height: 300px;
    width: 300px;
    align-self: center;
    text-align: center;
    background-color:#ffb3b3;
    color: #000;
    border-radius: 50px;
}form > input {
    height: 20px;
    width: 250px;
    margin-top: 10px;
    margin-bottom: 25px;
}
main > h2 {
    margin-bottom: 80px;
}




.upper-contaimer{
display: flex;
}
footer {
    align-self: center;
}