body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.pdfviewer {
    height: 800px;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}
.pdfviewer-container {
    margin: 0;
    padding: 0;
    display: flex;
    overflow: hidden;
    flex: 1;
}
.thumbnails {
    width: 150px !important;
    border: 1px solid #aaa;
    border-right: 3px solid #999;
    background: #ccc;
}
.thumbnails .pdfpage.selected {
    border: 2px solid #777;
    border-radius: 2px;
}
.maindoc {
    flex: 1;
}
.hide {
    display: none;
}
input[type="file"] {
    display: none;
}
.numbering {
    width: 100%;
    text-align: center;
    font-size: 0.75em;
    margin-top: 0.25em;
    color: #555;
}
.thumbnails .pdfpage {
    margin-bottom: 2em !important;
}
.thumbnails .pdfpage.hidden {
    opacity: 0.3;
}
.maindoc .pdfpage.hidden {
    display: none;
}