.a {
    width: 980px;
    border: 1px solid #ccc;
    background-color: white;
    box-shadow: 0px 0px 5px #aaa;
    border-radius: 0px;
}

a {
    color: #444444;
}
/* .b {padding: 0px 10px 0px 60px;} */
h4 {
    text-indent: -2em;
    color: #444;
    margin: 8px 0px;
}

p {
    color: #444;
    text-indent: 2em;
    margin-bottom: 5px;
    margin-top: 0px
}

h2 {
    text-align: center
}

h3 {
    text-align: center;
    background-color: #ccc;
    width: 980px;
    height: 40px;
    line-height: 40px;
}

table {
    border: solid 2px #555;
    border-collapse: collapse;
    border-spacing: 0;
    text-align: center;
    margin: 0 auto;
    width: 900px;
    margin-top: 20px;
}

    table tr {
        text-align: left;
    }

        table tr:first-child {
            text-align: center;
            background-color: #eee;
            font-weight: bold;
        }

td {
    border: 1px solid #555;
    padding: 3px;
}

b {
    text-align: center;
    display: block;
}

#目录 {
    border: 2px solid rgb(71,130,206);
    width: 200px;
    position: fixed;
    top: 10px;
    line-height: 11px;
    overflow-y: none;
    float: left;
    padding: 0px 0px 10px 0px;
    /*           border-radius: 0px 0px 10px 10px;*/
    box-shadow: 0px 2px 4px 2px rgba(157, 157, 157, 0.7);
    background-color: white;
}

    #目录 p {
        text-indent: 0em;
        margin: 0px;
        height: 20px;
        line-height: 20px;
    }

        #目录 p a {
            padding-left: 10px;
        }

a, a:hover {
    text-decoration: none;
}

.ce {
    background-color: #4782CE;
    height: 20px;
    margin: 0px;
    line-height: 20px;
}

    .ce a {
        color: #fff;
    }

#目录 p:hover {
    background-color: #ddd;
}

hr {
    border: 1px solid rgb(205, 205, 205);
    width: 980px;
    margin: 10px 0px;
}
/* 窗体变小到一定程度后隐藏目录 */
@media(max-width:1300px) {
    #目录 {
        display: none;
    }

    #目录2 {
        display: none;
    }

    #最大边界 {
        width: 550px;
        margin: auto
    }
}

.imgs {
    float: left;
    padding: 5px;
    margin-left: 35px
}
/* img{width:150px;} */
.shuoming {
    display: inline-block;
    width: 700px;
    height: 150px;
    margin: 0px 0px 10px 10px
}

.biaoti {
    background-color: #eee;
    text-align: center;
    font-weight: bold;
}

.chaolianjie a {
    color: rgb(173, 41, 255);
}

td:hover {
    background-color: #e4f0ff;
}