body { background-color: #f1f1f1; margin: 0; font-family: Helvetica, Sans-Serif;}
#main {display:grid;justify-items:center;grid-template-rows:1fr 50px;height:100vh;}
#pdfobj {max-width:100%; width:1000px; height:100%;}
a {
    border-radius: 4px;
    border: solid 1px #20538D;
    text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.4);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 1px 1px rgba(0, 0, 0, 0.2);
    background: #4479BA;
    color: #FFF;
    padding: 8px 12px;
    text-decoration: none;
}
#buttons {display: grid; column-gap:10px; padding-top:6px; padding-bottom:6px;grid-template-columns: auto auto auto;