body {
    font-family: sans-serif;
    margin: 20px;
    background-color: #f4f4f4;
}

h1, h2 {
    color: #333;
}

#editorContainer {
    display: flex;
    margin-top: 20px;
}

#spectrogramCanvas {
    border: 1px solid #ccc;
    background-color: #fff;
    margin-right: 20px;
}

#controls {
    border: 1px solid #ccc;
    padding: 15px;
    background-color: #eee;
    min-width: 200px;
}

#controls button {
    display: block;
    width: 100%;
    margin-bottom: 10px;
    padding: 10px;
    cursor: pointer;
}

#undoButton {
    background-color: #d9534f;
    color: white;
    border: none;
    border-radius: 4px;
}

#undoButton:hover {
    background-color: #c9302c;
}

#redoButton {
    background-color: #5cb85c;
    color: white;
    border: none;
    border-radius: 4px;
}

#redoButton:hover {
    background-color: #4cae4c;
}