body{
    background-color: aliceblue;
    border: 1px solid black;
    border-radius: 10px;
    padding: 1px;
    margin: 2px;
}

#a1{
    background-color: antiquewhite;
    border: 1px solid white;
    border-radius: 10px;
    padding: 5px;
    margin: 5px;
    text-align: center;
}

#a2{
    background-color: antiquewhite;
    border: 1px solid white;
    border-radius: 10px;
    padding:5px;
    margin: 5px;
}

#a3{
    background-color: antiquewhite;
    border: 1px solid white;
    border-radius: 10px;
    padding: 15px;
    margin: 10px;
    text-align: center;
}

a{
    text-decoration: none;
}