设置3d效果时,并没有side_back在上,而是side_front在上面先显示,为什么

来源:2-3 3D效果编写

行走的指尖

2016-08-15 16:18

为什么我的加了翻转之后,没有side_back在上面,而是side_front在上面

源代码如下:

<!DOCTYPE html>

<html>

<head>

<meta charset="UTF-8">

<title>图片画廊</title>

<style>

*{padding:0;margin:0;}

body{background:#fff;color:#555;font-family:'Avenir Next','微软雅黑';font-size:14px;-webkit-font-smoothing:antialiased;font-smoothing:antialiased;}

.wrap{width:100%;height:600px;position:absolute;top:50%;margin-top:-300px;background:#333;overflow:hidden;}


/*海报样式*/

.photo{width:260px;height:320px;position:absolute;z-index: 1;box-shadow:0 0 1px rgba(0,0,0,0.01);-webkit-perspective:800px;perspective:800px;}

.photo .side{width:100%;height:100%;background:#eee;position:absolute;top:0;right:0;padding:20px;box-sizing:border-box;}

.photo .side_front .image{width:100%;height:250px;line-height:250px;overflow:hidden;}

.photo .side_front .image img{width:100%;}

.photo .caption{text-align:center;font-size:16px;line-height:50px;}


 

.desc{color:#666;font-size:14px;line-height:1.5em;}


/*当前选中的海报样式*/

.photo_center{left:50%;top:50%;width:260px;height:320px;margin:-160px 0 0 -130px;z-index:999;}


/*负责翻转*/

.photo_wrap{position:absolute;width:100%;height:100%;-webkit-transform-style:preserve-3d;}

.photo_wrap .side_front{-webkit-transform:rotateY(0deg);}

.photo_wrap .side_back{-webkit-transform:rotateY(180deg);}


</style>

</head>

<body>

<div>

  <!-- photo 负责平移和旋转 -->

<div class="photo photo_center">

<!-- photo_wrap负责翻转 -->

<div>

<div class="side side_front">

<p><img src="images/pic1.jpg" alt=""></p>

<p>标题标题标题</p>

</div>

<div class="side side_back">

<p>描述信息</p>

</div>

</div>

</div>

</div>

</body>

</html>


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4回答

  • 追觅梦初的国度
    2016-09-29 21:23:06
    .photo .side-back{
        -webkit-transform: rotateY(180deg);
        -moz-transform: rotateY(180deg);
        -ms-transform: rotateY(180deg);
        -o-transform: rotateY(180deg);
        transform: rotateY(180deg);
    }
    .photo .side-front{
        -webkit-transform: rotateY(0deg);
        -moz-transform: rotateY(0deg);
        -ms-transform: rotateY(0deg);
        -o-transform: rotateY(0deg);
        transform: rotateY(0deg);
    }

    一个0deg 面对屏幕 一个180deg背对屏幕。当然是0deg在上面啊,面对我们,所以我们才能看见了。背对我们的也设置了3d效果,只是背对我们看 不见而已。自己多看看基础了!!!

  • 行走的指尖
    2016-09-07 09:55:21

    那个应该无所谓,我没有改过来,但是后面完成的样式是没问题的,下面是中间版本,给你个参考:

    <!DOCTYPE html>

    <html>

    <head>

    <meta charset="UTF-8">

    <title>图片画廊</title>

    <style>

    *{padding:0;margin:0;}

    body{background:#fff;color:#555;font-family:'Avenir Next','微软雅黑';font-size:14px;-webkit-font-smoothing:antialiased;font-smoothing:antialiased;}

    .wrap{width:100%;height:600px;position:absolute;top:50%;margin-top:-300px;background:#333;overflow:hidden;-webkit-perspective:800px;}

    /*海报样式*/

    .photo{width:260px;height:320px;position:absolute;z-index: 1;box-shadow:0 0 1px rgba(0,0,0,0.01);}

    .photo .side{width:100%;height:100%;background:#eee;position:absolute;top:0;right:0;padding:20px;box-sizing:border-box;-webkit-backface-visibility:hidden;}

    .photo .side_front .image{width:100%;height:250px;line-height:250px;overflow:hidden;}

    .photo .side_front .image img{width:100%;}

    .photo .caption{text-align:center;font-size:16px;line-height:50px;}

    .desc{color:#666;font-size:14px;line-height:1.5em;}

    /*当前选中的海报样式*/

    .photo_center{left:50%;top:50%;width:260px;height:320px;margin:-160px 0 0 -130px;z-index:999;}

    /*负责翻转*/

    .photo_wrap{position:absolute;width:100%;height:100%;-webkit-transform-style:preserve-3d;-webkit-transition:all .6s;}

    .photo_wrap .side_front{-webkit-transform:rotateY(0deg);}

    .photo_wrap .side_back{-webkit-transform:rotateY(180deg);}

    .photo_front .photo_wrap{-webkit-transform:rotateY(0deg);}

    .photo_back .photo_wrap{-webkit-transform:rotateY(180deg);}

    </style>

    </style>

    </head>

    <body onselectstart="return false">

      <!--2. 改写视图,为模板字符串 -->

    <div id="wrap">

      <!-- photo 负责平移和旋转 -->

    <div class="photo photo_front" onclick="turn(this)" id="photo_{{index}}">

    <!-- photo_wrap负责翻转 -->

    <div>

    <div class="side side_front">

    <p><img src="images/{{img}}" alt=""></p>

    <p>{{caption}}</p>

    </div>

    <div class="side side_back">

    <p>{{desc}}</p>

    </div>

    </div>

    </div>

    </div>

    <script src="images/data.js"></script>

    <script>

    //1.翻面控制

    function turn(elem){

    var cls = elem.className;

    if(/photo_front/.test(cls)){

    cls = cls.replace(/photo_front/,'photo_back');

    }else{

    cls = cls.replace(/photo_back/,'photo_front');

    }

    return elem.className = cls;

    }

    //3.通用函数

    function g(selector){

    var method = selector.substr(0,1) == '.' ? 'getElementsByClassName' : 'getElementById';

    return document[method](selector.substr(1));

    }

    //4.输出所有海报

    var data = data;

    function addPhotos(){

    var template = g('#wrap').innerHTML;

    var html = [];

    for(s in data){

    var _html = template

    .replace('{{index}}',s)

    .replace('{{img}}',data[s].img)

    .replace('{{caption}}',data[s].caption)

    .replace('{{desc}}',data[s].desc);

    html.push(_html);

    }

    g('#wrap').innerHTML = html.join(' ');


    rsort(random([0,data.length]));

    }

    addPhotos();

    //5.排序海报

    function rsort(n){

    var _photo = g('.photo');

    var photos = [];

    for(s=0;s<_photo.length;s++){ 

    _photo[s].className = _photo[s].className.replace(/\s*photo_center\s*/,' ');

    photos.push( _photo[s] );

    }

    var photo_center = g('#photo_'+ n);

    photo_center.className += ' photo_center ';

    photo_center = photos.splice(n,1)[0];

    //把海报分为左右区域两个部分

    var photos_left = photos.splice(0,Math.ceil(photos.length/2));

    var photos_right = photos;


    var ranges = range();


    for(s in photos_left){

    var photo = photos_left[s];


    photo.style.left = random(ranges.left.x) + 'px';

    photo.style.top = random(ranges.left.y) + 'px';


    photo.style['-webkit-transform'] = 'rotate('+random([-150,150])+ 'deg)';

    }


    for(s in photos_right){

    var photo = photos_right[s];


    photo.style.left = random(ranges.right.x) + 'px';

    photo.style.top = random(ranges.right.y) + 'px';


    photo.style['-webkit-transform'] = 'rotate('+random([-150,150])+ 'deg)';

    }


    console.log(photos_left.length,photos_right.length);

    }


    //6.计算左右分区的范围{left:{x:[min,max],y[min,max]}}

    function range(){

    var range = { left:{ x:[], y:[] }, right:{ x:[], y:[] }};


    var wrap = {

    w:g('#wrap').clientWidth,

    h:g('#wrap').clientHeight

    }

    var photo = {

    w:g('.photo')[0].clientWidth,

    h:g('.photo')[0].clientHeight

    }

    range.wrap = wrap;

    range.photo = photo;

    range.left.x = [0 - photo.w, wrap.w/2 - photo.w/2];

    range.left.y = [0 - photo.h, wrap.h];


    range.right.x = [wrap.w/2 + photo.w/2, wrap.w + photo.w];

    range.right.y = range.left.y;


    return range;

    }

    //随机生成一个值(0~20),支持取值范围random[min,max]

    function random(range){

    var max = Math.max(range[0],range[1]);

    var min = Math.min(range[0],range[1]);

    var diff = max - min;//差值

    var number = Math.ceil(Math.random() * diff + min);

    return number;

    }

    </script>

    </body>

    </html>


  • 任性不是罪
    2016-09-06 21:07:42

    我也出现了同样的问题,也是跟着老师打的,检查了好几遍代码,和老师的一样,请问你的问题解决了吗?可以分享一下答案吗?


  • NothingY_
    2016-08-15 22:13:04

    你确定你加上了吗?你的photo_wrap这个class都没加上,也没有在外面套一层div.photo_wrap

    行走的指尖

    嗯,是加了的,可是不知道为什么复制过来就没了。不过谢谢你,继续找问题中

    2016-08-16 08:55:48

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