body{
    background-color: white;
    border: 3px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 20px;
    margin-bottom: 5px;
}
.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
}
.center1 {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
    padding: 10px;
    border:5px solid;
}