body {
    background-color: #f5f5f5;
}

#top {
    height: 40px;
    line-height: 40px;
    background-color: #3a3a3a;
    color: #d7d7d7;
}

    #top .top-content {
        width: 1200px;
        margin: 0 auto;
    }

        #top .top-content .top-left {
            color: #d7d7d7;
            float: left;
        }

        #top .top-content .top-right {
            color: #d7d7d7;
            float: right;
        }

            #top .top-content .top-right img {
                height: 25px;
                width: 30px;
                position: relative;
                top: 5px;
                margin-right: 5px;
            }

#header {
    width: 1200px;
    margin: 0 auto;
    height: 110px;
    padding: 20px 0;
}

    #header .logo {
        width: 190px;
        float: left;
    }

    #header .chanel {
        width: 810px;
        float: left;
    }

        #header .chanel ul {
            padding-left: 60px;
        }

            #header .chanel ul li {
                float: left;
                line-height: 70px;
                font-size: 16px;
                font-weight: 600;
                padding: 0 30px;
            }

    #header .login {
        width: 200px;
        float: right;
        font-size: 16px;
        height: 70px;
        line-height: 70px;
        text-align: right;
    }

#course {
    background-color: #dfdfdf;
}

    #course .course-content {
        height: 40px;
        line-height: 40px;
        width: 1200px;
        margin: 0 auto;
    }

        #course .course-content .titile {
            width: 160px;
            float: left;
            font-size: 18px;
            color: #fff;
            background-color: #017bc4;
            padding-left: 12px;
        }

            #course .course-content .titile img {
                position: relative;
                top: 5px;
                margin-right: 5px;
            }

        #course .course-content ul {
            float: left;
        }

            #course .course-content ul li {
                float: left;
                line-height: 40px;
                font-size: 16px;
                padding: 0 30px;
            }

#footer {
    height: 260px;
    background-color: #3a3a3a;
    margin-top: 20px;
}

    #footer .fonter-content {
        width: 1200px;
        margin: 0 auto;
        padding-top: 20px;
    }

        #footer .fonter-content .item {
            float: left;
        }

            #footer .fonter-content .item .title {
                width: 100px;
                border-bottom: 1px #fff solid;
                color: #d7d7d7;
                height: 35px;
                line-height: 35px;
                text-align: center;
                font-size: 15px;
            }

            #footer .fonter-content .item .ewm {
                padding-top: 20px;
                margin-right: 80px;
            }

            #footer .fonter-content .item .contact {
                padding-top: 20px;
                width: 600px;
            }

                #footer .fonter-content .item .contact ul li {
                    color: #d7d7d7;
                    padding: 4px 0px;
                    margin-bottom: 5px;
                }

            #footer .fonter-content .item .navig {
                width: 100px;
                text-align: right;
                height: 30px;
                line-height: 30px;
                padding-top: 20px;
                margin-right: 110px;
            }

            #footer .fonter-content .item .aboutus {
                width: 100px;
                text-align: right;
                line-height: 30px;
                padding-top: 20px;
                margin-right: 80px;
            }