#meau>li:nth-child(5)>a{
    color: #039dff;
    border-bottom: 5px solid #039dff;
}
.danmu_box{
    width: 1200px;
    margin: 0 auto;
    position: relative;
    height: 100%;
}
.danmu{
    position: absolute;
    top:230px;
    right: 166px;
}
.input_box{
    width: 450px;
    position: absolute;
    top:154px;
    left: 124px;
}
.input_box input{
    display: block;
    width: 100%;
    height: 50px;
    border-radius: 5px;
    box-sizing: border-box;
    border: none;
    margin-bottom: 11px;
    font-size: 18px;
    padding: 0 20px;
    background: #fff;
}
.danmu_btn{
    width: 100%;
    height: 50px;
    background:#039dff;
    font-size: 18px;
    color:#fff;
    border-radius: 5px;
    text-align: center;
    line-height: 50px;
}
.input_box input.join{
    background:#fff url('../images/down.png') 96% 50% no-repeat;
}
.join_box{
    width: 100%;
    background: #fff;
    position: absolute;
    top:234px;
    left: 0px;
    border-radius: 0 0 5px 5px;
    display: none;
}
.join_box>li{
    height: 46px;
    padding-left: 30px;
    line-height: 46px;
    color:#909090;
}
.join_box>li:hover{
    background: #039dff;
    color:#fff;
}