应该在哪插入照片,怎么插入

<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<style>
    * {
        margin: 0;
        padding: 0;
    }
    
    html {
        height: 100%;
    }
    
    body {
        background-image: url(../img/randomdivbg.png);
        background-size: 100% 100%;
    }
    
    .imgspace {
        margin: auto;
        width: 1200px;
        height: 500px;
        position: relative;
        border: 1px solid black;
    }
</style>

<body>
    <div class="bg">
        <div class="imgspace"></div>
    </div>
</body>
<script type="text/javascript" src="../js/jquery-1.12.3.min.js"></script>
<script>
    var img = ["../worldcup/cup1.png", "../worldcup/cup2.png", "../worldcup/cup3.png",
        "../worldcup/cup4.png", "../worldcup/cup5.png", "../worldcup/cup6.png",
        "../worldcup/cup7.png", "../worldcup/cup8.png", "../worldcup/cup9.png",
        "../worldcup/cup10.png", "../worldcup/cup11.png", "../worldcup/cup12.png",
        "../worldcup/cup13.png", "../worldcup/cup14.png", "../worldcup/cup15.png",
        "../worldcup/cup16.png"
    ];

    var imgX = {};
    for(var i = 0; i < 15; i++) {
        var div = $("<div></div>");
        var width = parseInt(Math.random() * (250 - 150 + 1) + 150);
        var height = parseInt(width * 0.6);
        var margin = parseInt(Math.random() * (20 + 20 + 1) - 20);
        var rotate = parseInt(Math.random() * 30);
        var zindex = parseInt(Math.random() * 3);
        var imgindex;
        while(true) {
            imgindex = parseInt(Math.random() * img.length);
            if(!imgX[imgindex]) {
                imgX[imgindex] = 1;
                break;
            }
        }
        div.css("width", "" + width + "px").
        css("height", "" + height + "px").
        css("margin", "" + margin + "px").
        css("background-color", "#FF0000").
        css("display", "inline-block").
        css("background-image", "url(" + img[imgindex] + ")").
        css("background-size", "100% 100%").
        css("border", "5px solid white").
        css("transform", "rotate(" + rotate + "deg)").
        css("z-index", "" + zindex + "");

        div.clone().prependTo($(".imgspace"));
    }
</script>