body{
    /*background-color: #000;*/
}

div.footer{
    background-color: rgba(0,0,0,0.5);
    position: fixed;
    width: 100%;
    height: 80px;
    border-top: 1px solid #000;
}

/*div.sidebar{
    background-color: rgba(0,0,0,0.8);
}

div.sidebar *{
    color: #fff;
}

div.sidebar select,
div.sidebar select *{
    color: #000;
}*/

div.video,
div.sidebar,
div.footer{
    position: fixed;
}

div.video .filename{
    font-size: 16px;
    position: fixed;
    left: 0;
    top: 0;
    color: #fff;
    background-color: #000;
    opacity: 0.8;
    padding: 10px;
}

div.video{
    left: 0;
    top: 0;
    /*background-color: rgba(0,0,0,0.9);*/
    /*background-image: url(../media/ijf.png);*/
    background-image: url('../img/bg-main.png');
    /*background-size: cover;*/
    background-position: center;
    background-repeat: no-repeat;
    background-color: #000;
}

div.sidebar{
    right: 0;
    top: 0;
    /*background-color: rgba(0,0,0,0.1);*/
    border-left: 1px solid #000;
}

div.video{
    left: 0;
    bottom: 0;
}

.bg-img{
    background-image: url();
    background-repeat: no-repeat;
    background-position: center center;
}

.sidebar .medias{
    /*max-height: 80%;*/
    overflow-y: scroll;
}

.sidebar .media{
    /*height: 115px;*/
    width: 90%;
    margin: 0px auto;
    cursor: pointer;
}

.sidebar .media .bg-img{
    background-position: left center;
    background-size: auto 100px;
    height: 100px;
}

.sidebar .media .btn{
    margin-top: 10px;
}
.sidebar select{
    font-size: 18px;
}
.sidebar select option{
    padding: 10px 5px;
}

/*.sidebar .media .btn{
    background-size: auto 100px;
    height: 100px;
}*/

.tips{
    position: fixed;
}
.tips-select_group{
    right: 190px;
    top: 55px;
}
.tips-controls{
    left: 80px;
    bottom: 30px;
}

.btn-rules_presentation{
    position: fixed;
    top: 120px;
    left: 20px;
    padding: 20px 18px;
    font-size: 21px;
}

.close_tips{
    position: fixed;
    left: 20px;
    top: 20px;
}

.close_tips .btn{
    padding: 20px 50px;
    font-size: 26px;
}

.close_tips_over{
    width: 100%;
    height: 100%;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 9999;
}


div.backdrop-main{
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,.4)
}