div{
    width: 50%;
    background-color: aqua;
    margin: 30px;
    padding: 10px;
}


.div3 {
    width: 400px;
    border-top: darkslategray 10px double ;
    border-bottom: darkslategray 10px double ;
    background-color: #ddf;
    padding:32px 20px;
    margin: 32px 32px 20px 32px;
    text-align: center;
}