<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>html input 输入框提示（hint）内容的实现</title>
</head>
<style type="text/css">
form{width:400px;margin:10px auto;border:solid 1px #E0DEDE;background:#FCF9EF;padding:30px;box-shadow:0 1px 10px rgba(0,0,0,0.1) inset;}
label{display:block;height:40px;position:relative;margin:20px 0;}
span{position:absolute;float:left;line-height:40px;left:10px;color:#BCBCBC;cursor:text;}
.input_txt{width:398px;border:solid 1px #ccc;box-shadow:0 1px 10px rgba(0,0,0,0.1) inset;height:38px;text-indent:10px;}
.input_txt:focus{box-shadow:0 0 4px rgba(255,153,164,0.8);border:solid 1px #B00000;}
.border_radius{border-radius:5px;color:#B00000;}
h2{font-family:"微软雅黑";text-shadow:1px 1px 3px #fff;}
</style>
<body>
<form action="/testform.asp" method="get">
<input type="text" name="zip_code" pattern="[0-9]{6}" placeholder="请输入0-9的6位数编码"/>
<input type="submit" value="Submit"/>
</form>
<form class="border_radius" ).show();
}
})
})
})
</script>
</html>
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