我遇到了下面的示例来动态更改对象的形状和大小。
这不是一个真实的例子,但一旦我做对了,我就会应用它
<!DOCTYPE html>
<html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js">
</script>
<script>
${"div").css("position","relative");
</script>
<script>
$(document).ready(function(){
$("div").mouseenter(function(){
var div=$("div");
div.animate({height:'300px',opacity:'0.4'},"slow");
div.animate({width:'300px',opacity:'0.8'},"slow");
div.animate({height:'100px',opacity:'0.4'},"slow");
div.animate({width:'100px',opacity:'0.8'},"slow");
});
});
</script>
</head>
<body>
<button>Start Animation</button>
<p>By default, all HTML elements have a static position, and cannot be moved. To manipulate the position, remember to first set the CSS position property of the element to relative, fixed, or absolute!</p>
<div style="background:#98bf21;height:100px;width:100px;position:absolute;">
</div>
</body>
</html>
段落标签说我需要先设置 CSS 定位来创建动态内容——我该怎么做?是否也可以在创建时启用所有组件的动态性?