html,
body {
    margin: 0;
}

body {
    background: #f4f4f4;
    color: #333333;
    font-family: "黑体";
}

img {
    border: 0;
}

header {
    position: fixed;
    top: 0;
    z-index: 99999;
    height: 60px;
    width: 100%;
    background-color: rgb(0, 129, 227);
}

header>div.topNav {
    width: 1200px;
    margin: 0 auto;
}

.logo {
    float: left;
    line-height: 60px;
    color: #ffffff;
}

.logo img {
    vertical-align: middle;
    margin-right: 10px;
}

div.signOut {
    /* display: inline-block; */
    float: right;
    width: 200px;
    height: 30px;
    line-height: 60px;
    color: white;
    cursor: pointer;
}

main {
    margin: 0;
}

main>section {
    width: 1200px;
    margin: 0 auto;
    padding: 60px 40px 140px 40px;
}

main>section .Breadcrumb {
    margin: 0;
    padding: 0;
    height: 33px;
    overflow: hidden;
    margin-top: 15px;
    margin-bottom: 15px;
}

.Breadcrumb li {
    list-style: none;
    float: left;
    margin-left: 10px;
}

.Breadcrumb li a {
    color: #333333;
    text-decoration: none;
}

main>section h2.sortTitle {
    font-size: 20px;
    background: url(images/sortTitleIcon.png) 0px 2px no-repeat;
    padding-left: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid #ccc;
    padding-top: 0;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 20px;
    /* font-weight: normal; */
}

.sortTitle .markTxt {
    color: #E83344;
}

section.courseLists {
    width: 918px;
    float: left;
}

.courseOne {
    float: left;
    position: relative;
    width: 434px;
    height: 176px;
    margin-right: 23px;
    margin-bottom: 20px;
    border-radius: 10px;
    /* transition: all ease-in-out .2s; */
    transition: all .3s;
}

.courseBox {
    position: absolute;
    top: 0;
    left: 0;
    background: #ffffff;
    border-radius: 10px;
    border: 1px solid rgba(231, 237, 247, 1);
    z-index: 100;
    width: 399px;
    height: 141px;
    padding: 17px;
    transition: all .3s;
}

.courseBoxBg01 {
    position: absolute;
    z-index: 10;
    left: 10px;
    top: 7px;
    width: 414px;
    height: 176px;
    border-radius: 10px;
    background: rgba(0, 0, 0, .09);
    transition: all .3s;
}

.courseBoxBg02 {
    position: absolute;
    z-index: 2;
    left: 20px;
    top: 12px;
    width: 394px;
    height: 176px;
    border-radius: 10px;
    background: rgba(0, 0, 0, .08);
    transition: all .3s;
}

.courseOne:hover .courseBox {
    left: 0px;
    top: -5px;
}

.courseOne:hover .courseBoxBg01 {
    left: 14px;
    top: 2px;
    width: 410px;
}

.courseOne:hover .courseBoxBg02 {
    left: 27px;
    top: 7px;
    width: 380px;
}

.courseOne h3 {
    margin: 0;
    line-height: 30px;
}

.courseOne:hover h3 {
    color: #277FE1;
}

.courseOne .courseOneImg {
    width: 180px;
    height: 140px;
    overflow: hidden;
    margin: 0;
    padding: 0;
    float: left;
    margin-right: 14px;
}

.courseOne .courseOneImg img {
    width: 100%;
}

.courseOne .courseOneTitle {
    width: 204px;
    float: left;
}

.courseOne .courseOneTitle h3 {
    font-size: 16px;
    color: #333333;
}

.courseOneTitle p {
    font-size: 14px;
    color: #666666;
    margin: 0;
    padding: 0;
    line-height: 35px;
}

.featuresBtn01 {
    padding-right: 10px;
    height: 35px;
    text-align: center;
    border-radius: 2px;
    line-height: 35px;
    text-decoration: none;
    color: #333333;
    cursor: default;
    float: left;
    font-size: 14px;
}

.featuresBtn01 img {
    vertical-align: middle;
    margin-right: 8px;
}

.onlineCourseRight {
    float: right;
    width: 282px;
    height: 539px;
    margin-bottom: 45px;
}

.StuLogin {
    background: url(images/personalCenter.png) no-repeat;
}

.TeacherLogin {
    background: url(images/TeacherPersonCenter.png) no-repeat;
}

.loginUserInfo {
    font-size: 14px;
    padding-top: 38px;
    padding-left: 25px;
    color: #FFFFFF;
}

.softwareUsage {
    display: block;
    width: 131px;
    height: 30px;
    border: 1px solid #E7EDF7;
    border-radius: 8px;
    margin-top: 24px;
    margin-left: 74px;
    text-decoration: none;
    color: #ffffff;
    line-height: 30px;
    text-align: center;
    font-size: 14px;
}

.softwareUsage:hover {
    background: #F8F8F8;
    color: #277FE1;
    transition: all ease-in-out .2s;
}

.logOutBtn {
    display: block;
    text-align: center;
    text-decoration: none;
    width: 77px;
    height: 30px;
    line-height: 30px;
    border: 1px solid #277FE1;
    border-radius: 8px;
    margin-top: 40px;
    margin-left: 103px;
    color: #277FE1;
}

.logOutBtn .quitIcon {
    width: 15px;
    height: 16px;
    display: inline-block;
    background: url(images/quitIcon.png) no-repeat;
    margin-right: 6px;
    vertical-align: top;
    margin-top: 7px;
}

.logOutBtn:hover {
    background: #277FE1;
    color: #ffffff;
}

.logOutBtn:hover .quitIcon {
    background: url(images/quitCurrIcon.png) no-repeat;
}

.onlineCourseRight ul {
    margin: 0;
    padding: 0;
    margin-top: 189px;
    height: auto;
    overflow: hidden;
}

.onlineCourseRight ul li {
    list-style: none;
    float: left;
    margin: 10px 7px;
}

.onlineCourseRight ul li a {
    display: inline-block;
    width: 77px;
    height: 30px;
    border-radius: 8px;
    text-align: center;
    line-height: 30px;
    text-decoration: none;
    color: #ffffff;
}

.onlineCourseRight ul li.gradeBoard a {
    background: #E83344;
    margin-left: 50px;
}

.onlineCourseRight ul li a {
    display: inline-block;
    width: 77px;
    height: 30px;
    border-radius: 8px;
    text-align: center;
    line-height: 30px;
    text-decoration: none;
    color: #ffffff;
}

.onlineCourseRight ul li.studyRecord a {
    background: #277FE1;
}

.logOutBtn {
    display: block;
    text-align: center;
    text-decoration: none;
    width: 77px;
    height: 30px;
    line-height: 30px;
    border: 1px solid #277FE1;
    border-radius: 8px;
    margin-top: 40px;
    margin-left: 103px;
    color: #277FE1;
}


/* .coursesAll{
    width: 862px;
    float: left;
    background: #ffffff;
    margin-top: 20px;
    padding: 16px;
    margin-top: 20px;
}
.coursesAll.resultsRanking{
    width: 172px;
    height: 500px;
} */

.courseNav {
    width: 170px;
    float: left;
    padding: 16px;
    background: #ffffff;
    margin-top: 20px;
    height: 600px;
    position: fixed;
}

.courseNav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.courseNav ul li a {
    width: 170px;
    height: 46px;
    background: #e7edf7;
    display: block;
    text-align: center;
    line-height: 46px;
    margin-bottom: 16px;
    text-decoration: none;
    color: #333333;
}

.courseNav ul li.current a {
    background: #277fe1;
    color: #ffffff;
}

.courseIcon {
    width: 22px;
    height: 22px;
    display: inline-block;
    background: url(images/courseIcon.png) no-repeat;
    vertical-align: middle;
    margin-right: 5px;
}

.courseNav ul li.current a .courseIcon {
    background: url(images/courseIconCurrent.png) no-repeat;
}

.personalCenter {
    width: 22px;
    height: 22px;
    display: inline-block;
    background: url(images/personalCenterIcon.png) no-repeat;
    vertical-align: middle;
    margin-right: 5px;
}

.resultsList {
    width: 22px;
    height: 22px;
    display: inline-block;
    background: url(images/resultsListIcon.png) no-repeat;
    vertical-align: middle;
    margin-right: 5px;
}

.courseNav ul li.current a .personalCenter {
    background: url(images/personalCenterIconCurrent.png) no-repeat;
}

.courseNav ul li.current a .resultsList {
    background: url(images/resultsListIconCurrent.png) no-repeat;
}

.courseContentLi {
    margin-left: 244px;
    float: left;
    width: 646px;
}

.resultsRankingContent {
    width: 982px;
    float: right;
    margin-top: 20px;
}

.personalCenterContent {
    width: 972px;
    float: right;
    margin-top: 20px;
}

.smallTxt {
    font-size: 14px;
    margin-left: 17px;
}

.clear {
    clear: both;
}

.trainingBtn {
    display: block;
    margin-top: 10px;
    width: 120px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    color: #277FE1;
    text-decoration: none;
    border: 1px solid #277FE1;
    border-radius: 15px;
    transition: all ease-in-out .2s;
}

.trainingBtn:hover {
    background: #277FE1;
    color: #ffffff;
    box-shadow: 0px 2px 6px 0px rgba(39, 127, 225, 0.6);
    transition: all ease-in-out .2s;
}

.topVersion {
    margin-top: 20px;
    float: right;
}

.tabList {
    border-bottom: 1px solid #ccc;
    height: 50px;
    line-height: 50px;
    margin-top: 20px;
    margin-bottom: 20px;
}

.tabList ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tabList ul li a {
    float: left;
    display: block;
    padding-left: 20px;
    padding-right: 20px;
    text-decoration: none;
    color: #333333;
}

.tabList ul li.current a {
    color: #277fe1;
    border-bottom: 2px solid #277fe1;
}