.pdf-preview-container {
    display: flex;
    justify-content: center;
    width: 100%;
}

.pdf-preview-block img {
    max-width: 100%;
    min-width: 116px;
    height: auto;
    border: 1px solid #888;
    box-shadow: 2px 2px 2px rgba(0,0,0,0.3);
}

.pdf-preview-block-link {
    display: inline-block;
    min-width: 116px;
    text-align: center;
    text-decoration: none;
}

.pdf-preview-block {
    display: flex;
    justify-content: center;
}

.pdf-caption {
    margin-top: 8px;
    font-size: 0.9em;
    color: #666;
    text-align: center;
    line-height: 1.4;
}