html, body, div, iframe,
h1, h2, h3, h4, h5, h6, p,
a, address, em, font, img, strong, sup,
dl, dt, dd, ol, dl, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    font-weight: inherit;
    font-style: inherit;
    font-family: 'Microsoft YaHei';
}
/* remember to define focus styles! */
input {
    background: #fff;
}

:focus {
    outline: 0;
}

body {
    /*line-height: 1;*/
    background: white;
    overflow: auto;
}

ol, ul {
    list-style: none;
}
/* tables still need 'cellspacing="0"' in the markup */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

caption, th, td {
    text-align: left;
    font-weight: normal;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content: "";
}

blockquote, q {
    quotes: "" "";
}

a, a:link {
    text-decoration: none;
}

textarea {
    resize: none;
    border-radius: 0;
}

img {
    border: none;
    vertical-align: top;
}

.clear {
    zoom: 1;
}

    .clear:after {
        content: "";
        display: block;
        clear: both;
    }

.btn {
    background-color: #e5e5e5;
    background-image: none;
    filter: none;
    border: 0;
    box-shadow: none;
    padding: 7px 14px;
    text-shadow: none;
    font-size: 14px;
    color: #333333;
    cursor: pointer;
    outline: none;
}

    .btn:hover {
        background: #d8d8d8;
    }

    .btn.blue {
        background: #4d90fe;
        color: #fff;
    }

        .btn.blue:hover {
            background: #2477FF;
        }


.btn-border {
    padding: 6px 14px;
    line-height: 20px;
    position: relative;
    cursor: pointer;
    color: #888;
    background: #fafafa;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    display: inline-block;
}

    .btn-border:hover {
        text-decoration: none;
    }

    .btn-border input {
        position: absolute;
        font-size: 100px;
        right: 0;
        top: 0;
        opacity: 0;
        filter: alpha(opacity=0);
        cursor: pointer;
    }

.required {
    color: red;
}

.fl {
    float: left;
}

.fr {
    float: right;
}
/*句号*/
.ellipsis {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 选中知识点 */
.high-light-font {
    color: #333;
    border-bottom: 3px solid #ED610B;
    display: inline;
    margin-left: 8px;
}

    .high-light-font .space {
        margin: 0 4px;
    }

/* 面包屑 */
.sitemap {
    line-height: 30px;
    font-size: 12px;
    background-color: #FFF7C0;
    padding-left: 12px;
    border-radius: 5px;
    margin-bottom: 10px;
}

    .sitemap i {
        margin-right: -3px;
    }

    .sitemap a {
        font-size: 12px;
        color: #333;
    }

        .sitemap a:hover {
            text-decoration: underline;
        }

/* end */

/* file按钮 */
a.a-file {
    position: relative;
    overflow: hidden;
    color: #827f7f;
}

    .a-file .input-file {
        position: absolute;
        right: 0;
        top: 0;
        font-size: 100px;
        opacity: 0;
    }



.help {
    background: #ff7867;
    color: #fff;
    border-radius: 50%;
    position: fixed;
    top: 80px;
    left: 50px;
    width: 30px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    font-weight: bold;
}

/* 弹框 */
.layer-box{
    padding-bottom: 28px;
}