body{
    background-image: url(img/qq.jpg);
    background-size: cover;
    padding: 0;
    margin: 0 auto;


}
#container{
    color: black;
    margin: 0 auto;
    width: 68%;
    border-style: solid;
    border-color: white;
    border-width: 3px;
    
}
header{
    font-size: 30px;
    font-weight: bold;
}
.l{
    font-size: 20px;
}
.r{
    color: red;
}
.v{
    color: green;
}
.video{width: 1000px;
}
p{
    font-size: 25px;
}