body {
    display: flex;
    margin: 0;
    height: 100vh;
}

#output {
    flex: 3;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
}

#controls {
    flex: 1;
    padding: 10px;
    overflow-y: auto;
    box-sizing: border-box;
}

#image-preview img {
    max-width: 100%;
    height: auto;
}

label, input {
    display: block;
}

input[type="range"], input[type="number"], input[type="color"], input[type="file"], input[type="text"], select {
    width: 100%;
    margin-bottom: 10px;
}

button {
    width: 100%;
    margin-bottom: 10px;
}