一、实现原理
瀑布流布局由pinterest.com网站首创，它的原理是：先通过计算出一排能够容纳几列元素，然后寻找各列之中所有元素高度之和的最小者，并将新的元素添加到该列上，然后继续寻找所有列的各元素之和的最小者，继续添加至该列上，如此循环下去，直至所有元素均能够按要求排列为止；
二、举例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style>
div.item{
position: absolute;
width: 200px;
margin: 10px;
transition: all 1s;
}
div#content{
position: relative;
}
.part1{
background-color: yellow;
height: 200px;
}
.part2{
background-color: #006ac1;
height: 400px;
}
.part3{
background-color: blueviolet;
height: 300px;
}
</style>
</head>
<body>
<div id="content">
<div class="item part1">1</div>
<div class="item part2">2</div>
<div class="item part3">3</div>
<div class="item part1">4</div>
<div class="item part1">5</div>
<div class="item part2">6</div>
<div class="item part2">7</div>
<div class="item part3">8</div>
<div class="item part1">9</div>
<div class="item part2">10</div>
<div class="item part2">11</div>
<div class="item part2">12</div>
<div class="item part3">13</div>
<div class="item part3">14</div>
</div>
<script src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
function waterFall() {
var widthNum=parseInt($(window).width()/$(".item").outerWidth(true)),
allHeight=[];
for (var i=0;i<widthNum;i++){
allHeight.push(0)
}
$(".item").each(function () {
var $cur=$(this),
indx=0,
minAllHeight=allHeight[0];
for (var j=0;j<allHeight.length;j++){
if (allHeight[j]<minAllHeight){
minAllHeight=allHeight[j];
indx=j;
}
}
$cur.css({
"left":indx*$cur.outerWidth(true),
"top":minAllHeight
});
allHeight[indx]=minAllHeight+$cur.outerHeight(true);
})
}
waterFall();
$(window).on("resize",function () {
waterFall()
})
</script>
</body>
</html>
代码预览地址：
https://github.com/have-not-BUG/task/blob/master/renwu/renwu30/renwu30.html
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