/*CAU HOI*/
.ripple {
    position: relative;
    overflow: hidden;
    transform: translate3d(0, 0, 0);
}

.ripple:after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .5s, opacity 1s;
}
.ripple:active:after {
    transform: scale(0, 0);
    opacity: .3;
    transition: 0s;
}
/*END CAU HOI*/
.dang_cham_diem p{
    text-align: center;
    color: #888;
    font-size: 16px;
}
.box_diem{
    background: #dddddd;
    width: 260px;
    height: 46px;
    position: relative;
    margin:  0 auto;
}
.box_diem img{
    width: 260px !important;
    height: 46px !important;
    position: absolute;
    z-index: 999;
    left: 0 !important;
    bottom: 0 !important;
}
.box_diem:hover img{
    cursor: pointer;
}

.so_diem{
    background: #ffab1c;
    position: absolute;
    bottom: 1px !important;
    left: 0 !important;
    height: 45px;
    z-index: 10;
}
.video_bg{
    /*
    height: 768px;
    */
    height: 100%;
}
#video_background {
    /*
     position: absolute;
     bottom: 0;
     left: 0;
    */
    min-width: 100%;
    min-height: 100%;
    width: 100%;
    height: auto;
    z-index: -1000;
    overflow: hidden;
}

/*COMPUTER*/
@media all and (min-width: 599px){

    #content{
        width: 1080px;
        margin: 0 auto;
        display: block;
    }
    #content .wrap_top{
        width: 100%;
        margin: 0 auto;
    }
    #content .wrap_top img{
        max-width: 100%;
    }

    #content .wrap_top .title p{
        font-size: 30px;
    }

    .tit_ds_tham_gia{
        text-align: center;
        font-size: 30px !important;
        color: #60bb46;
        padding-top: 20px;
    }

}





/*MOBILE*/
@media all and (max-width: 599px){
    #content .wrap_top img{
        max-width: 100%;
    }

    .tit_ds_tham_gia{
        padding-top: 30px;

        text-align: center;
        font-size: 18px !important;
        color: #60bb46;
    }


}