body, ::backdrop {
    font-family: Arial;
    background-color: gray;
    margin: 0px;
}

#reader {
    display: flex;
    width: 100%;
    justify-content: center;
    align-items: top;
}

/* #toc {
    width: 20%;
    border-right: 1px solid #ccc;
    padding: 10px;
    overflow-y: auto;
} */

#content {
    -ms-overflow-style: none; /* for Internet Explorer, Edge */
    scrollbar-width: none; /* for Firefox */
    /* overflow-y: scroll; */
}
#content::-webkit-scrollbar {
    display: none; /* for Chrome, Safari, and Opera */
}

#content {
    width: 400px;
    height: calc(100vh - 20px);
    padding: 10px;
    margin: 0px;
    font-size: 20px;
    line-height: normal;
    background-color: black;
    color: white;
    /* position: fixed; */
    overflow: scroll;
    /* position: fixed; */
    /* vertical-align: baseline-shift 50px; */
    /* margin-top: -50px; */
    /* top: -100px; */
    /* display: table-cell; */
    /* scroll-margin-top: 100px; */
}

/* img { */
    /* height: auto;  */
    /* width: auto;  */
    /* max-height: 10px;  */
    /* max-height: 300px; */
/* } */

.ChapTitleNonprintingctnp, .Nonprinting{
    display: none;
}

.switch-page {
    height: 100vh;
    width: 2%;
}

#settings, .right {
    flex: 1;
    margin: 5px;
}