html运行实例（cssref_anim_flex-grow）-搜寻教程库

代码示例：（标识：cssref_anim_flex-grow）

<!DOCTYPE html>
<html>
<head>
<style> 
#main {
  width: 350px;
  height: 100px;
  border: 1px solid #c3c3c3;
  display: flex;
}

#main div:nth-of-type(1) {flex-grow: 1;}
#main div:nth-of-type(2) {flex-grow: 1;}
#main div:nth-of-type(3) {flex-grow: 1;}

#myBlueDiv {
  animation: mymove 5s infinite;
}

@keyframes mymove {
  50% {flex-grow: 8;}
}
</style>
</head>
<body>

<h1>flex-grow 的动画效果：</h1>

<p>Gradually change the flex-grow property of the "blue DIV" from 1 to 8, and back to 1:<p>

<div id="main">
  <div style="background-color:coral;"></div>
  <div style="background-color:lightblue;" id="myBlueDiv"></div>
  <div style="background-color:khaki;"></div>
</div>

<p><b>注释：</b>CSS 动画在 Internet Explorer 9 以及更早版本中不起作用。</p>

</body>
</html>