有時須要設置下面的狀況,即 <div> 的高度和寬度是相等的、而且隨着屏幕的大小變化而變化。這樣就須要用 js 來控制元素在頁面上的顯示。javascript
<html>
css
<body>html
<div class="row text-center margin-top-20p">java
<div class="col bgcolor-FF9600 border-radius-5p margin-2p height-width">spa
<p class="white">你是</p>orm
<p class="white" ng-bind="userLever.name"></p>htm
</div>ip
<div class="col bgcolor-FECA14 border-radius-5p margin-2p height-width" ng-if="userLever.discount != 10">it
<p class="white">享受</p>class
<p class="white">{{userLever.discount}}折</p>
</div>
<div class="col bgcolor-FECA14 border-radius-5p margin-2p height-width" ng-if="userLever.discount == 10">
<p class="margin-top-20p white">不享受</p>
<p class="white">折扣</p>
</div>
<div class="col bgcolor-A5D600 border-radius-5p margin-2p height-width">
<p class="white">加入時間</p>
<p class="white" ng-bind="addTime"></p>
</div>
</div>
<body>
</html>
<script type="text/javascript">
//設置元素的高度
var height = $(".height-width").width();
$(".height-width").css("height",height );
$(".height-width-child").css("height",height );
$(".height-width p:first-child").css("margin-top",Math.ceil(height/4)+"px");
$(".height-width-child p").css("line-height",height+"px");
</script>