body {
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
}

#parent {
    width: 800px;
    padding: 40px;
    border: 5px solid #be4407;
    background-color: #efefef;
    margin: auto;
    display: flex;
}

.child {
    padding: 20px;
    border: 2px solid #0084ff;
    background-color: beige;
}