.studyBox h1 {
    text-align: center;
}

.studyBox p {
    font-size: 14px;
    color: #333;
    line-height: 24px;
    text-align: left;
    text-indent: 2em;
}

.studyBox p.no-indent {
    text-indent: 0em;
}

.studyBox p.sub_title {
    font-weight: bold;
}

.bookList {
    text-align: center;
}

.bookList .cf {
    display: inline-block;
    width: 350px;
    height: 128px;
    padding-bottom: 12px;
    overflow: hidden;
    margin-right: 20px;
    margin-top: 20px;
    cursor: pointer;
    border-bottom: 1px dashed #D5D5D5;
}

.bookList .cf:nth-child(2n) {
    margin-right: 0;
}

.bookList .cf img {
    float: left;
    display: block;
    width: 100px;
    height: 128px
}

.bookList .cf .text {
    float: left;
    width: 240px;
    margin-left: 10px;
    text-align: left;
    font-size: 14px;
    line-height: 20px;
    color: #333;
}

.bookList .cf .text h5 {
    font-size: 16px;
    font-weight: bold;
    line-height: 24px;
    color: #333;
    text-wrap: initial;
}

.bookList .cf .text p {
    text-indent: 0;
}

@media screen and (max-width: 750px) {
    .content-main table td {
        font-size: 0.24rem;
    }

    .bookList .cf {
        width: 100%;
        margin-top: 0;
        margin-right: 0;
    }

    #contentBox li {
        padding: 0.2rem 0;
    }

    .bookList .cf .text {
        width: calc(100% - 110px);
    }
}