#preview-container {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

#label-sheet-preview {
    position: relative;
    border: 2px solid black;
    background-color: #f0f0f0;
}

.label {
    position: absolute;
    border: 1px solid #000;
    background-color: #fff;
}