body {
    background-color: #d1d1d1;
    width:100%;
    height:100%;
    margin:0;
}

.download-button{
    text-align: right;
    margin: 10px;
}

.btn {
    background-color: DodgerBlue;
    color: white;
    padding: 12px 30px;
    cursor: pointer;
    font-size: 20px;
    box-shadow: -4px 4px black, -3px 3px black, -2px 2px black;
    border: 1px solid DodgerBlue;
}

.btn:hover {
   // background-color: RoyalBlue;
}

.pdf-frame {
    width:100%;
    height:100%;
}

.pdf-frame iframe {
    width:100%;
    height:100%;
}