.title{
    font-family: SimHei;
    text-align: center;
    margin-bottom: 0;
}

img{
    user-select: none;
    max-width: 100%;
    height: auto;
}

.toTop {
    user-select: none;
    font-size: large;
    width: 50px;
    height:50px;
    border-radius: 12px;
    background: #333;
    color: white;
    text-align: center;
    position: fixed; /*使用固定定位*/
    padding: 0 0 0 0;
    bottom: 50px;
    right: 10px;
}

.accpwd{
    text-align: center;
    color: red;
    font-weight: bold;
}

.mask {
    background-color: #252525;
    color: #252525;
    transition: color 0.01s;
}

.mask:hover {
    color: #ffffff;
}

.table{
    font-family: SimHei;
    padding: 0;
    text-align: center;
}

.toc {
    font-size: large;
    font-family: SimHei;
    list-style-type: none;
    padding-left: 20px;
    word-wrap:break-word;
}

.toc a{
    text-decoration: none;
}

.hr-dashed-fixed {
    border: 0;
    padding-top: 1px;
    /* for IE浏览器 */
    background: repeating-linear-gradient(to right, #a2a9b6 0px, #a2a9b6 4px, transparent 0px, transparent 10px);
    /* for 现代浏览器 */
    background: repeating-linear-gradient(to right, #a2a9b6 0 var(--dashed-filled, 4px), transparent 0 calc(var(--dashed-filled, 4px) + var(--dashed-open, 6px)));
}

.title2{
    font-family: SimHei;
    text-align: center;
}

.container1{
    font-family: SimSun;
    font-size: large;
    word-wrap:break-word;
    overflow: hidden;
    height: auto;
}

.video1{
    max-width: 100%;
    height: 300px;
    margin: 0 90px 0 110px;
}

.video2{
    max-width: 100%;
    height: auto;
}

.content1{
    margin: 0 10% 0 10%;
}

.tips{
    text-align: center;
    color: gray;
    font-size: x-small;
    margin: 0;
}