.em-editor-container {
    max-width: 800px;
    margin: 30px auto;
    text-align: center;
    font-family: Arial, sans-serif;
}
#em-canvas {
    border: 1px solid #ccc;
    margin-top: 15px;
    max-width: 100%;
}
button {
    margin: 10px 5px;
    padding: 10px 15px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
}
button:hover {
    background-color: #45a049;
}
.em-tip {
    font-size: 13px;
    color: #555;
    margin-top: 10px;
}