<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
span{
background: #ccc;
cursor: pointer;
}
.comment{
max-height: 500px;
min-height: 50px;
height: 100px;
}
</style>
</head>
<body>
<form >
<div class="msg">
<div class="msg_caption">
<span class="bigger">放大</span>
<span class="smaller">缩小</span>
</div>
<div><textarea },400)
}
}
})
})
</script>
</html>
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