body {
    font-family: Arial, sans-serif;
    margin: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

#menu-bar {
    background-color: #333;
    color: white;
    padding: 10px;
}

#menu-bar ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

#menu-bar ul li {
    position: relative;
    padding: 10px;
    cursor: pointer;
}

#menu-bar ul li ul {
    display: none;
    position: absolute;
    background-color: #444;
    top: 100%;
    left: 0;
    list-style-type: none;
    margin: 0;
    padding: 0;
}

#menu-bar ul li:hover ul {
    display: block;
}

#menu-bar ul li ul li {
    padding: 10px;
}

#editor {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f0f0f0;
}

#canvas {
    border: 1px solid #ccc;
}

#controls {
    padding: 10px;
    background-color: #f9f9f9;
    display: flex;
    justify-content: center;
    align-items: center;
}

#controls label {
    margin: 0 10px;
}

#controls input, #controls select, #controls button {
    margin: 0 10px;
}

.submenu {
    position: relative;
}

.submenu-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
}

.submenu:hover .submenu-content {
    display: block;
}