#mpe-container {
    border: 1px solid #ccc;
    padding: 10px;
    background: #fff;
}
.mpe-toolbar {
    margin-bottom: 10px;
}
.mpe-toolbar button {
    padding: 8px 15px;
    cursor: pointer;
    background: #eee;
    border: 1px solid #999;
}
.mpe-toolbar button.primary {
    background: #0073aa;
    color: white;
    border: none;
}
#mpe-paper {
    border: 1px solid #ddd;
    box-shadow: inset 0 0 10px #eee;
}
#mpe-result {
    margin-top: 15px;
    padding: 10px;
    background: #f9f9f9;
    border-top: 2px solid #333;
}