.content {
    width:99%!important;
    background: 0!important;
}

.course-title {
    display: flex;
    flex-direction: column;
    justify-content: start;
    text-transform: uppercase;
    font-size: 20px;
    line-height: 1;
}
.course-title img {
    width: 44px;
    height: 24px;
    margin-bottom: 8px;
}
.course-title .english {
    color: #8F8F8F;
    font-size: 18px;
    margin: 8px 0 20px;
}
.course-title .english span {
    padding-left: 8px;
    color: #3379f3;
}
.course-content, .course-content-syllabus {
    padding: 10px;
    line-height: 35px;
    border: 1px solid #3379f3;
    background-clip: padding-box;
    box-sizing: border-box;
}
.course-content {
    background: url(curriculum_bg.jpg) no-repeat right bottom #f2f9eb;
}
.padding-36 {
    padding: 36px 0;
}
.screen {
    width: 670px;
    height: 460px;
    overflow: hidden;
    position: relative;
}
.screen ul {
    position: absolute;
    left: 0;
    top: 0px;
    width: 40000px;
}
.screen li {
    width: 670px;
    overflow: hidden;
    float: left;
}
.all ol{ position:absolute; right:15px; bottom:0; line-height:20px; text-align:center;}
.all ol li{ float:left; width:20px; height:20px; background:#fff; color: #1aa97b; margin-left:10px; cursor:pointer;list-style-type: none;}
.all ol li.current{ color: #fff; background: #1aa97b;}

/* #arr {display: none;} */
#arr span{ width:40px; height:40px; position:absolute; left:5px; top:50%; margin-top:-20px; background:#000; cursor:pointer; line-height:40px; text-align:center; font-weight:bold; font-family:'黑体'; font-size:30px; color:#fff; opacity:0.3; border:1px solid #fff;}
#arr #right{right:5px; left:auto;}
.flex{
    align-items: center;
}
.bg-F4 {
    background-color: #F4F4F4;
}
.download {
    height: 66px;
    padding: 0 24px;
    font-size: 20px;
    color: #3379f3;
}
.download h3 {
    margin: 0;
    font-weight: normal;
    font-size: 18px;
}
.download h3 span {
    color: #333;
}
.el-button {
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    background: #FFF;
    border: 1px solid #DCDFE6;
    color: #606266;
    -webkit-appearance: none;
    text-align: center;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    outline: 0;
    margin: 0;
    -webkit-transition: .1s;
    transition: .1s;
    font-weight: 500;
    padding: 12px 20px;
    font-size: 14px;
    border-radius: 4px;
}
.el-button--primary {
    color: #fff;
    background: #3379f3;
    border-color: #3379f3;
}