body {
    text-align: center;
    width: 100%;
    font-size: 16pt;
    font-family: Arial;
}

.content {
    background-color: #fee;
    border: 1px dotted #faa;
    border-radius: 10px;
    max-width: 800px;
    margin: 50px auto;
    padding: 15px;
    
}

#ip6s, #ip6, #ip4, #ip4s {
    font-weight: bold;
}

#ip6b,#ip4b {
    display: none;
    padding: 20px;
}