/** 全局样式 **/
* {
    margin: 0;
    padding: 0;
}
body {
    font-size: 14px;
}
li {
    list-style: none;
}
a {
    color: #000;
    text-decoration: none;
}
.fl {
    float: left;
}
.fr {
    float: right;
}
.clear {
    clear: both
}


/** index.html **/
.header {
    width: 1200px;
    margin: 0 auto;
}
.logo {
    width: 100%;
    height: 50px;
}
.logoleft {
    width: 238px;
    height: 56px;

}
.logoright {
    width: 259px;
    height: 27px;
}
.menu {
    width: 100%;
    height: 50px;
}
.menubtn {
    width: 242px;
    height: 50px;
    /**background:url(../img/course_menu_bg.png) no-repeat;**/
    background-image: url('../img/course_menu_bg.png');
    background-repeat: no-repeat;
    padding-left: 100px;
}
.menubtn a {
    color: white;
    font-size: 18px;
    line-height: 50px;
}
.menu ul li {
    width: 130px;
    height: 50px;
    float: left;
    text-align: center;
    line-height: 50px;
}
.menu ul li a {
    font-size: 16px;
}
.main {
    width: 100%;
}
.banner {
    width: 100%;
    background: #194AC3 no-repeat center center;
}
.banner .title {
    text-align: center;
    color:black;
    font-size: 30px;
    padding-top: 20px;
    height: 60px;
    background-image: url('../img/banner.jpg');
}
.content {
    padding-top: 20px;
    color: black;
    width: 800;
    display: table;
    margin: 0 auto;
    line-height: 30px;

}
.nav {
    width: 1200px;
    height: 80px;
    margin: 0 auto;
}
.nav ul {
    padding: 20px 0;
}
.nav ul li {
    width: 299px;
    height: 40px;
    float: left;
    text-align: center;
    line-height: 40px;
}
.nav ul li:nth-child(1),
.nav ul li:nth-child(2),
.nav ul li:nth-child(3) {
    border-right: 1px #d9d9d9 solid;
}
.nav ul li a {
    font-size: 18px;
}
.infobg {
    width: 100%;
    padding: 60px 0;
    background-color: #f3f3f3;
}
.info {
    width: 1200px;
    height: 480px;
    background-color: #fff;
    margin: 0 auto;

}
.footer {
    text-align: center;
    width: 100%;
    height: 100px;
    font-size: 16px;
    padding: 20px 0;
    margin: 0 auto;
    background : #fff;
}

.code {
    padding: 10px 10px 10px 40px;
    font-size: 13px;
    line-height: 18px;
    background-color: #eee;
    font-family: "Lucida Console", Consolas, Monaco;
    white-space: pre-wrap;
    word-break: break-all;
    position: relative;
    overflow: hidden;
}

.code::before {
    content: '01.\A 02.\A 03.\A 04.\A 05.\A 06.\A 07.\A 08.\A 09.\A 10.\A 11.\A 12.\A 13.\A 14.\A 15.\A 16.\A 17.\A 18.\A 19.\A 20.\A 21.\A 22.\A 23.\A 24.\A 25.\A 26.\A 27.\A 28.\A 29.\A 30.\A 31.\A 32.\A 33.\A 34.\A 35.\A 36.\A 37.\A 38.\A 39.\A 40.\A 41.\A 42.\A 43.\A 44.\A 45.\A 46.\A 47.\A 48.\A 49.\A 50.\A 51.\A 52.\A 53.\A 54.\A 55.\A 56.\A 57.\A 58.\A 59.\A 60.\A 61.\A 62.\A 63.\A 64.\A 65.\A 66.\A 67.\A 68.\A 69.\A 70.\A 71.\A 72.\A 73.\A 74.\A 75.\A 76.\A 77.\A 78.\A 79.\A 80.\A 81.\A 82.\A 83.\A 84.\A 85.\A 86.\A 87.\A 88.\A 89.\A 90.\A 91.\A 92.\A 93.\A 94.\A 95.\A 96.\A 97.\A 98.\A 99';
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 0;
    text-align: right;
    background-color: #fbfbfb;
    color: #333;
    outline: 100px solid #fbfbfb;
    clip: rect(-100px 2em 9999px 0);
    /* IE9+ */
    clip: rect(-100px 3.5ch 9999px 0);
    overflow: hidden;
}