.boxjwplayer{max-width:800px;height:auto; margin: 0 auto; padding-bottom:20px;position:relative;}
#myPlayer{outline:0;text-align:center}
.btn_next{right:17px; padding:20px 0px 20px 15px}
.btn_prev{left:0;padding:20px 15px 20px 0px}
.btn_next, .btn_prev{
    position:absolute; z-index:100;top:170px;
    cursor:pointer;
    background-color: rgba(0, 0, 0, 0.5);
    border: 0px solid;
    border-radius: 6px;
} 
.btn_next div{
    float:right;
    margin:0;
    width: 40px;
    height: 58px;
    background: url('img/a22.png') -70px -31px no-repeat;
}
.btn_prev div{
    float:right;
    margin:0;
    width: 40px;
    height: 58px;
    background: url('img/a22.png') -10px -31px no-repeat;
}
.btn_next:hover, .btn_prev:hover{background-color: rgba(0, 0, 0, 0.8);}

#myPlayer_controlbar{max-width:100% !important}