点击图片查看大图--以弹框的形式显示在屏幕正中间

 *{margin:0;padding:0;}
        .tab_bg{display:none;width:100%;height:100%;background:#282829;z-index:99;position:absolute;}
        .tab_img{width:100px;height:100px;margin:20px;}
        .tab_img img{width:100%;height:100%;}
        .bigImg{display:none;width:300px;height:300px;z-index:999;position:absolute;left:50%;margin-top:-150px;margin-left:-150px;}
        .bigImg img{width:100%;height:100%;}
        .close{display:none;width:20px;height:20px;border-radius:100%;border:1px solid #ccc;text-align:center;cursor:pointer;position:absolute;right:10px;top:10px;z-index:999;color:#fff}
        li{height:300px;}
View Code
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
    <div class="tab_bg">
        <div class="close">x</div>
    </div>

    <ul>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
        <li>111</li>
    </ul>
    <table>
        <tr>
            <td>1</td>
            <td><div class="tab_img tab_img1">
                <img src="2.jpg" alt=""/>
            </div></td>
        </tr>
        <tr>
            <td>2</td>
            <td><div class="tab_img tab_img2">
                <img src="3.jpg" alt=""/>
            </div></td>
        </tr>
        <tr>
            <td>3</td>
            <td> <div class="tab_img tab_img3">
                <img src="1.jpg" alt=""/>
            </div></td>
        </tr>
    </table>
</body>
</html>
View Code
 var $height=$(window).height();
    $(".tab_bg").height($height);
    function imgEnlarge(small){
        $(small).on("click",function(){
            var $big=document.createElement("div");
            $($big).attr("class","bigImg");
            $($big).appendTo($("body"));
            var $img=document.createElement("img");
            $($img).attr("src",$(this).find("img").attr("src"));
            $($img).appendTo($big);
            $(this).css("display","none");
            $(".tab_bg").css("display","block");
            $(".close").css("display","block");
            $($big).fadeIn();
            $(window).bind("scroll",function(){return false});
            var top1=$(window).scrollTop();
            $(window).scrollTop(top1);
            $(".tab_bg").css("top",top1);
            $("body").css("overflow","hidden");
            $(".bigImg").css("top",top1+$height/2);
                    });
        $(".close").on("click",function(){
            $(this).css("display","none");
            $(small).css("display","block");
            $(".tab_bg").css("display","none");
            $(".bigImg").css("display","none");
            $("body").css("overflow","auto");
        })
    }
    $(".tab_img").each(function(){
        imgEnlarge($(this));
    })

 

posted @ 2016-08-08 16:01  dongxiaolei  阅读(562)  评论(0编辑  收藏  举报