#notice{
    margin-top: 10px;
}

#videoBox {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;

}

.videoc {
    position: absolute;
    top: 0;             
    bottom: 0;           
    left: 0;        
    right: 0;
    margin: 0 auto;
    width: 70%;
    height: 70%;
}