• 原生js实现头像大屏随机显示


    效果如下图所示:

    一、html部分

        <div class="myContainer">
            <ul>
                <li class="first"><img src="images/1.jpg"></li>
                <li class="second"><img src="images/2.jpg"></li>
                <li class="third"><img src="images/3.jpg"></li>
                <li class="fourth"><img src="images/4.jpg"></li>
                <li class="firth"><img src="images/5.jpg"></li>
                <li class="sixth"><img src="images/6.jpg"></li>
                <li class="first"><img src="images/7.jpg"></li>
                <li class="second"><img src="images/8.jpg"></li>
                <li class="third"><img src="images/9.jpg"></li>
                <li class="fourth"><img src="images/10.jpg"></li>
                <li class="firth"><img src="images/11.jpg"></li>
                <li class="sixth"><img src="images/12.jpg"></li>
            </ul>
        </div>

    二、css部分(清除样式自己写哈)

    body,html {
        width: 100%;
        height: 100%;
    }
    
    .myContainer {
        width: 100%;
        height: 100%;
        background-image: url('../images/bg.png');
        background-repeat: no-repeat;
        -webkit-background-size: cover;
        background-size: cover;
        background-position: center center;
    }
    
    .first {
        width: 128px;
        height: 128px;
        opacity: 1;
        z-index: 6;
    }
    
    .first img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #346fe0;
        box-shadow: 0 0 40px 6px #0927c1;
    }
    
    .second {
        width: 114px;
        height: 114px;
        opacity: .9;
        z-index: 5;
    }
    
    .second img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #346fe0;
        box-shadow: 0 0 30px 4px #0927c1;
    }
    
    .third {
        width: 100px;
        height: 100px;
        opacity: .8;
        z-index: 4;
    }
    
    .third img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #346fe0;
        box-shadow: 0 0 30px 3px #0927c1;
    }
    
    .fourth {
        width: 86px;
        height: 86px;
        opacity: .7;
        z-index: 3;
    }
    
    .fourth img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #346fe0;
        box-shadow: 0 0 20px 3px #0927c1;
    }
    
    .firth {
        width: 78px;
        height: 78px;
        opacity: .6;
        z-index: 2;
    }
    
    .firth img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #346fe0;
        box-shadow: 0 0 20px 2px #0927c1;
    }
    
    .sixth {
        width: 54px;
        height: 54px;
        opacity: .5;
        z-index: 1;
    }
    
    .sixth img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #346fe0;
        box-shadow: 0 0 20px 1px #0927c1;
    }
    
    ul {
        position:relative;
       100%;
       height: 100%;
    }

    三、js部分

        (function(){
                var ul=document.getElementsByTagName('ul')[0];
                var li=ul.getElementsByTagName('li');
                for (var i = 0; i < li.length; i++) { //循环为每个元素定位
                    var s = li[i].style;
                    s.position = 'absolute';  //设置为绝对定位
                    var sWidth = li[i].clientWidth; //取到每一个li的宽度
                    var myWidth=ul.offsetWidth-sWidth;
                    var myHeight=ul.offsetHeight-sWidth;
                    if (myWidth>0) {
                        s.left = Math.floor(Math.random() * (myWidth)) + 'px';
                    } else {
    s.left = 0;
              };
              if(myHeight>0) {
                s.top
    = Math.floor(Math.random() * (myHeight)) + 'px'; }
              } else {
                s.top=0;
             }
          })()
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  • 原文地址:https://www.cnblogs.com/candy-Yao/p/9239255.html
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