.body{
    background-color: lightcyan;
}
.main{
    display: flex;
    justify-content: center;
    align-items: center;
    place-items: center;
}
.container{
    display: flex;
    flex-direction: column;
    width: 20rem;
    padding: 10px;
    justify-content: center;
    align-items: center;
    place-items: center;
    
}
.container input{
    height: 3rem;
    width: 10rem;
    margin: 1px;
    font-size: medium;
    border-radius: .5rem;
}
.container label{
    font-size: 1.5rem;
    margin: .5rem;
}
.sum{
    font-weight: bolder;
    background-color: green;
    columns: black;
}