.title{
    color: purple;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}
body{
    background-image: url(../img/jiao.jfif);
    background-repeat:no-repeat;
    background-attachment: fixed;
    background-size: 1290px;
}
h2{
    font-size: 20px;
    font-family: Georgia, 'Times New Roman', Times, serif;
    color: azure;
}
.video{
    clear:both;
    display:block;
    margin:auto
}
.center{
    text-align: center;
}
.year{
    color: rgb(255, 238, 0);
    font-size: large;
    font-family: fantasy;
}
.telling{
    color: rgb(238, 20, 209);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
.explain{
    color: gray;
    font-size: 15px;
}
.backtop{
    color: rgb(178, 9, 245);
}
.left{
    display: block;
        position: fixed;
        top: 400px;
        left: 50px;
        height: 100px;
        width: 100px;
}
.cc{
    float: inline-end;
    position: absolute;
}
.next{
    color: honeydew;
    font-family: fantasy;
}
.d{
    color: hotpink;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    font-size: 18px;
}
a{ color:rgb(252, 252, 252)} 
    a:hover{ color:rgb(173, 10, 248)}
    a {text-decoration:none;}