body {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}

#top-bar {
    width: 100%;
    height: 45px;
    background-color: rgb(61, 61, 61);
    position: fixed;
    top: 0;
    padding: 0 10px;
    box-sizing: border-box;
    color: black;
    border-bottom: 1px solid rgba(0,0,0,0.35);
    -webkit-box-shadow: 0px 1px 3px 0px rgba(0, 0, 0, 0.45);
    -moz-box-shadow: 0px 1px 3px 0px rgba(0, 0, 0, 0.45);
    box-shadow: 0px 1px 3px 0px rgba(0, 0, 0, 0.45);
    text-align: center;
}
.navbtn{
    margin: 5px 2.5px;
    height: 35px;
    float: right;
    background: rgb(36, 36, 36);
    border: 1px solid rgb(0, 0, 0);
    border-radius: 3px;
    color: rgba(255, 255, 255, 0.582);
}
.burger{
    margin: 5px 2.5px;
    height: 35px;
    float: left;
    background: rgb(36, 36, 36);
    border: 1px solid rgb(0, 0, 0);
    border-radius: 3px;
    color: rgba(255, 255, 255, 0.582);
    font-size: 22px;
    line-height: 22px;
    padding: 0 10px;
}
h5{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    margin: 10px 0;
    font-family: Calibri;
    color: rgba(255,255,255,0.65);
    font-size: 19px;
    font-weight: 400;
    z-index: -999
}
#pdf-viewer {
    width: 100%;
    height: calc(100vh - 45px);
    overflow: auto;
    touch-action: pinch-zoom;
    margin-top: 45px;
    /* Account for the fixed top bar */
}

canvas {
    width: 100%;
    height: auto;
}