web:文字的延时不能正常运行

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" href="css/css.css">
<style>
*{
	margin: 0;
	padding: 0;
}
.box{
	width: 480px;
	height: 300px;
	overflow: hidden;
	position: relative;
	float: left;
}
.wenzi{
	position: absolute;
	top:0;
	left: 0;
}
.pingyi{
	background-color: #000000;
}
.pingyi .wenzi{
	padding: 20px;
	color: #FAF8F8;
}
.pingyi .wenzi p{
	color: #747373;
	background-color:#FFFFFF; 
	margin-top: 5px;
	transform: translate(-300px);
}
.pingyi:hover img{
	opacity: 0.7;
	transition: opacity 3s ease-in;
}
.pingyi:hover .wenzi p{
	transform: translate(0);
	transition:translate 3s ease-in;
}
.pingyi:hover .wenzi p:nth-of-type(1){
	transition-delay:0.2s;
}
.pingyi:hover .wenzi p:nth-of-type(2){
	transition-delay:0.4s;
}
.pingyi:hover .wenzi p:nth-of-type(3){
	transition-delay:0.6s;
}
</style>
</head>

<body>
	<div class="box pingyi">
		<img src="image/c.jpg" alt="">
		<div class="wenzi">
			<h4>平移动画</h4>
			<p>文字说明1</p>
			<p>文字说明2</p>
			<p>文字说明3</p>
		</div>
	</div>
</body>
</html>

不知道哪里有问题,设置的延时没有显现。

希望有前辈可以帮忙看下

 pingyi:hover .wenzi p{} transition:去掉translate

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" href="css/css.css">
<style>
*{
	margin: 0;
	padding: 0;
}
.box{
	width: 480px;
	height: 300px;
	overflow: hidden;
	position: relative;
	float: left;
}
.wenzi{
	position: absolute;
	top:0;
	left: 0;
}
.pingyi{
	background-color: #000000;
}
.pingyi .wenzi{
	padding: 20px;
	color: #FAF8F8;
}
.pingyi .wenzi p{
	color: #747373;
	background-color:#FFFFFF; 
	margin-top: 5px;
	transform: translate(-300px);
}
.pingyi:hover img{
	opacity: 0.7;
	transition: opacity 3s ease-in;
}
.pingyi:hover .wenzi p{
	transform: translate(0);
	transition: 3s ease-in;
}
.pingyi:hover .wenzi p:nth-of-type(1){
	transition-delay:0.2s;
}
.pingyi:hover .wenzi p:nth-of-type(2){
	transition-delay:0.4s;
}
.pingyi:hover .wenzi p:nth-of-type(3){
	transition-delay:0.6s;
}
</style>
</head>
<body>
	<div class="box pingyi">
		<img src="image/c.jpg" alt="">
		<div class="wenzi">
			<h4>平移动画</h4>
			<p>文字说明1</p>
			<p>文字说明2</p>
			<p>文字说明3</p>
		</div>
	</div>
</body>
</html>