body{
    border: 1px solid;
    padding: 5px;
    margin: 5px;
    border-radius: 10px;
}

#a2{
    border: 1px solid purple;
    padding: 5px;
    margin: 5px;
}

li{
    padding: 10px 4px;
}
a{
    text-decoration: none;
}