*{
    margin: 0;
    font-family: ΢ÈíÑÅºÚ ;
    padding: 0;
}
#timeLine{
    width: 1000px;
    margin: 100px auto;
    /*border:  solid 1px #434343;*/
    /*background: rgba(500,500,500,0.9);*/
    overflow: hidden;
}
#yearList{
    width: 100%;
    list-style: none;
    position: relative;
    /*left: 457px;*/
    margin-left: 457px;
}
#yearList:after,.container-li:after{
    content: "";
    display: table;
    clear: both;
}
#yearList li{
    float: left;
    cursor: pointer;
    text-align: center;
    font-size: 21px;
    padding: 10px 20px;
}
.year-dot{
    width: 10px; height: 10px; border-radius: 5px;
    background-color: #002f21;
    margin: 10px auto;
    display: block;
}
.dotted-line{
    border-bottom: dashed 2px  #7b7d7b;
    position: relative;
    top: -26px;
    z-index: -1;
}
#cList{
    width: 100%;
    position: relative;
}
#btnLeft{
    width: 50px; height: 130px;
    display: inline-block;
    position: absolute;
    left: 0;
    top: 180px;
    text-decoration: none;
    color: #fff;
    font-size: 30px;
    text-align: center;
    line-height: 120px;
    background: rgba(0,0,0,0.3);
}
#btnRight{
    width: 50px; height: 130px;
    display: inline-block;
    position: absolute;
    right: 0;
    top: 180px;
    text-decoration: none;
    color: #fff;
    font-size: 30px;
    text-align: center;
    line-height: 120px;
    background: rgba(0,0,0,0.3);
}
#btnLeft:hover,#btnRight:hover{
    background: rgba(0,0,0,0.5);
}
#cUl{
    width: 850px;
    list-style: none;
    height: 400px;
    margin: 0 auto;
    position: relative;
    left: 0px;
}
#cUl li{
    width: 850px;
  position: absolute;  left: 0;
}
.li-tit{
    display:inline-block;
    color: #fff;
    background-color: #002f21;
    padding: 10px 20px;
    margin: 30px auto 10px;
}
.container-li{
    width: 100%;
    padding: 20px 50px;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    border: solid 1px #434343;
}
.c-li-left{
    width: 40%;
    float: left;
}
.c-li-right{
    width: 60%;
    float: right;
}
.year-active{
    color: red;
}
.year-active i{
    background-color: red;
}