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css uses expression to distinguish read-only text boxes

Author：Eve Cole Update Time：2025-02-11 14:09:44

<style type="text/css">
<!--

input{ background:expression((this.readOnly &&this.readOnly==true)?"#CCCCCC":"")}
-->
</style>

<body>
<input type="text" name="" />
<input type="text" name="" readonly="readonly" />

 

expression:处理方式：

     expression(操作手法)；

       expression(?:)

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