@charset"utf-8";
/*---------------------------样式归零 By 天涯浅唱 QQ：122452357----------------------*/
abbr, address, article, aside, audio, b, blockquote, body, canvas, caption, cite, code, dd, del, details, dfn, div, dl, dt, em, fieldset, figcaption, figure, footer, form, h1, h2, h3, h4, h5, h6, header, hgroup, html, i, iframe, img, ins, kbd, label, legend, li, mark, menu, nav, object, ol, p, pre, q, samp, section, small, span, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, time, tr, ul, var, video {
    /*margin: 0;*/
    padding: 0;
    border: 0;
    outline: 0;
    /*font-size: 100%;*/
    background: 0 0;
    /*font-weight: 400;
    font-style: inherit;
    font-family: inherit;*/
    vertical-align: top
}

body {
    line-height: 1;
    color: #000;
    background: #fff;
    font-size: 12px;
    font-family: 'simsun'
}

article, aside, details, figcaption, figure, footer, header, hgroup, hr, menu, nav, section {
    display: block
}

nav ul, ol, ul {
    list-style: none
}

:focus, a {
    outline: 0
}

a {
    margin: 0;
    font-size: 100%;
    vertical-align: baseline;
    background: 0 0;
    blr: expression(this.onFocus=this.blur())
}

a, ins {
    text-decoration: none
}

a, hr {
    padding: 0
}

ins, mark {
    background-color: #ff9;
    color: #000
}

mark {
    font-style: italic;
    font-weight: 700
}

blockquote, q {
    quotes: none
}

blockquote:after, blockquote:before, q:after, q:before {
    content: '';
    content: none
}

del {
    text-decoration: line-through
}

abbr[title], dfn[title] {
    border-bottom: 1px dotted;
    cursor: help
}

table {
    border-collapse: collapse;
    border-spacing: 0
}

caption, td, th {
    text-align: left;
    font-weight: 400
}

hr {
    height: 1px;
    border: 0;
    border-top: 1px solid #cccccc;
    margin: 1em 0
}

input, select {
    vertical-align: middle;
    border: 0
}
/*-------------------------归零样式END，请于样式表最前面调用-------------------------*/

/*-----------------自定义按钮样式，移动端不需要，PC端根据实际情况选择----------------*/
.demo {width: 800px;height: 450px;font-size: 14px;position:relative;}
.demo a.control {position:absolute;display: block;top: 50%;margin-top: -78px;width: 76px;height: 112px;cursor: pointer;z-index: 2;background: url(/course/static/images/buttons.png) no-repeat}
.demo a.prev {left: 0;background-position: 0 0}
.demo a.next {right: 0;background-position: -76px 0}
.demo a.prev:hover {background-position: 0 -112px}
.demo a.next:hover {background-position: -76px -112px}
/*----------------------------为保证最佳效果，建议设置如下样式------------------------*/
.slider {display: none}