body {
    font-family: sans-serif;
    margin: 2em;
}

table {
    border-collapse: collapse;
}

th, td {
    border: 1px solid #ccc;
    padding: 0.5em;
}

.drop-area {
    border: 2px dashed #ccc;
    border-radius: 20px;
    width: 300px;
    height: 200px;
    padding: 20px;
    text-align: center;
    font-family: Arial, sans-serif;
    margin-bottom: 20px;
}
.drop-area.highlight {
    border-color: purple;
}