.box1 {
    width: 400px;
    padding: 10px;
    border: 2px dotted palegoldenrod;
    margin: 30px;
    background-color: aliceblue;
}

.box2 {
    background-color: bisque;
    padding: 30px;
    margin: 50px;
    width: 400px;
    border: 4px double darkblue;
}

#box3 {
    padding: 5px;
    margin: 50px;
    width: 400px;
    border: 10px ridge teal;
}

.box4 {
    background-color: bisque;
    padding: 30px;
    margin: 50px;
    width: 400px;
    border: 4px double darkblue;
    box-sizing: border-box;
}