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HTML | readonly Attribute
  • Difficulty Level : Basic
  • Last Updated : 25 Mar, 2020

It is a Boolean attribute that is used to specify that the text written in input or text area Element is read-only. It means that a user can not modify or changes a content already present in a particular Element (However, a user can tab to it, highlight it, and copy the text from it). Whereas a JavaScript can be used to change the read-only value and make the input field editable.

Elements: This attribute is used with two elements which are listed below:

  • <input>: It is used to readonly attribute to read the content only.
  • <text-area> It is used to hold the readonly attribute.

Example: 1

  • Syntax:
    <input readonly>
  • Program:




    <!DOCTYPE html>
    <html>
      
    <head>
        <title>readonly attribute</title>
        <style>
            body {
                text-align: center
            }
              
            h1,
            h2 {
                color: green;
                font-style: italic;
            }
        </style>
    </head>
      
    <body>
        <h1>GeeksForGeeks</h1>
        <h2>readonly attribute in Input Element</h2>
        <form action="">
            Email:
            <input type="text" name="email">
            <br> Country:
            <input type="text" name="country" 
                             value="Noida" readonly>
            <br>
            <input type="submit" value="Submit">
        </form>
    </body>
      
    </html>
  • Output:

    Example:2

  • Syntax:
    <textarea readonly>
  • Example:




    <!DOCTYPE html>
    <html>
      
    <head>
        <title>readonly attribute</title>
        <style>
            body {
                text-align: center;
            }
              
            h1,
            h2 {
                color: green;
                font-style: italic;
            }
        </style>
    </head>
      
    <body>
        <h1>GeeksForGeeks</h1>
        <h2>readonly attribute in input Element</h2>
        <textarea rows="4" cols="40" readonly>
          GeeksForGeeks is a good website for 
          learning computer science. It is a 
          computer science portal for geeks.
        </textarea>
    </body>
      
    </html>
  • Output:

    Supported Browsers: The browsers supported by readonly attribute are listed below:

    • Google Chrome
    • Internet Explorer
    • Firefox
    • Opera
    • Safari



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