body {
    font-family: Arial, sans-serif;
    margin: 30px;
}

#visualLayout {
    border: 1px solid black;
    height: 150px;
    margin-top: 10px;
    position: relative;
}

.element-box {
    display: inline-block;
    width: 100px;
    height: 50px;
    background-color: #4CAF50;
    color: white;
    margin: 5px;
    text-align: center;
    line-height: 50px;
}