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HTML Attributes

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HTML Attribute facilitates the meta-information related to the HTML Elements. It is always defined with the start tag and usually specified name/value pairs like name=”value”. Every name has some value that must be written within quotes. The use of Single or Double Quotes is always suggested while defining the Attributes, especially, when the value of an attribute itself contains double quotes, then it is need to use the single quotes.

W3 Recommendations for Attributes

  • The lowercase attribute names are not necessary to be defined according to the HTML standards. It is required for the stricter document types, such as XHTML. However, it is always suggested to use the lowercase attributes in HTML according to the W3C recommendations.
  • The Quote Attribute Values are always suggested to be used according to the W3C recommendations.

Syntax:

<element attribute_name= "attribute_value">

HTML Global Attributes

HTML src Attribute

If we want to insert an image into a webpage, then we need to use the <img> tag and the src attribute. We will need to specify the address of the image as the attribute’s value inside the double quote.

Example: This example explains the HTML src Attributes to specify the source address of the file.

HTML




<html>
 
<head>
    <title>src Attribute</title>
</head>
 
<body>
    <img src=
</body>
 
</html>


Output:

HTML src Attribute Example Output

HTML alt Attribute

This is an alt Attribute that is used to show or display something if the primary attribute i.e., the <img> tag, fails to display the value assigned to it. This can also be used to describe the image to a developer who is actually sitting at the coding end.

Example: This example explains the HTML alt Attributes to specify the name of the file when the image is not loaded properly.

HTML




<html>
 
<head>
    <title>alt Attribute</title>
</head>
 
<body>
 
    <!--If the image is not found or the img field
     is left blank the alt value gets displayed-->
 
    <img src=
         alt="The Logo"><br>
    <img src=""
         alt="Since the src value is blank,the alt value is displayed">
</body>
 
</html>


Output:

HTML alt Attribute Example Output

HTML width and height Attribute

The width and height Attribute is used to adjust the width and height of an image(in pixels).

Example: This example explains the HTML width & height Attributes to specify the different sizes of the images.

HTML




<!DOCTYPE html>
<html lang="en">
 
<head>
    <title>Width and Height</title>
</head>
 
<body>
    <img src=
         width="300px"
         height="100px">
</body>
 
</html>


Output:

HTML width & height Attribute Example Output

HTML id Attribute

The id attribute is used to provide a unique identification of an element. Situations may arise when we need to access a particular element that may have a similar name as the others. In that case, we provide different IDs to various elements so that they can be uniquely accessed. The properties extending the use of id are generally used in CSS, which we will be learning later.

Example: This example explains the HTML id Attribute to specify the unique value for the specific element.

HTML




<!DOCTYPE html>
<html>
 
<head>
    <style>
        #geeks {
            color: green;
        }
    </style>
</head>
 
<body>
    <h1 id="geeks">Welcome to GeeksforGeeks</h1>
</body>
 
</html>


Output:

HTML id Attribute Example Output

HTML title Attribute

The title attribute is used to explain an element by hovering the mouse over it. The behavior differs with various elements but generally, the value is displayed while loading or hovering the mouse pointer over it.

Example: This example explains the HTML title Attributes to specify the metadata for the element by hovering the mouse over it.

HTML




<html>
<head>
    <title>title Attribute</title>
</head>
<body>
    <h3 title="Hello GeeksforGeeks">Hover to see the effect</h3>
</body>
</html>


Output:

HTML title attribute Example Output

HTML href Attribute

The href attribute is used to specify a link to any address. This attribute is used along with the <a> tag. The link put inside the href attribute gets linked to the text displayed inside the<a> tag. On clicking on the text we will be redirected to the link. By default, the link gets opened in the same tag but by using the target attribute and setting its value to “_blank”, we will be redirected to another tab or another window based on the browser’s configuration.

Example: This example explains the HTML href Attributes specify the link address of the file.

HTML




<!DOCTYPE html>
<html>
 
<head>
    <title>link Attribute</title>
</head>
 
<body>
        Click to open in the same tab
    </a><br>
       target="_blank">
        Click to open in a different tab
    </a>
</body>
 
</html>


Output:

href attribute

HTML style Attribute

The style attribute is used to provide various CSS effects to the HTML elements such as increasing font-size, changing font-family, coloring, etc.

Example: This example explains the HTML style Attributes to specify the style properties for the HTML element.

HTML




<!DOCTYPE html>
<html>
 
<head>
    <title>style Attribute</title>
</head>
 
<body>
    <h2 style="font-family:Chaparral Pro Light;">
          Hello GeeksforGeeks.
      </h2>
    <h3 style="font-size:20px;">
          Hello GeeksforGeeks.
      </h3>
    <h2 style="color:#8CCEF9;">
          Hello GeeksforGeeks.
      </h2>
    <h2 style="text-align:center;">
          Hello GeeksforGeeks.
      </h2>
</body>
 
</html>


Output:

style Attribute

HTML lang attribute

The language is declared with the lang attribute. Declaring a language can be important for accessibility applications and search engines.

Example: This example explains the HTML lang Attributes that specify the language of the HTML page.

HTML




<!DOCTYPE html>
<html lang="en">
 
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width,
                   initial-scale=1.0">
    <title>lang attribute</title>
    <style>
        body {
            text-align: center;
        }
 
        h1 {
            color: green;
        }
 
        .lang-info {
            font-style: italic;
        }
    </style>
</head>
 
<body>
    <h1>GeeksforGeeks</h1>
    <h2>lang attribute</h2>
 
    <p lang="en">
        A computer science portal for geeks
    </p>
 
    <p lang="fr" class="lang-info">
        A computer science portal for geeks
    </p>
 
    <p lang="es" class="lang-info">
        A computer science portal for geeks
    </p>
</body>
 
</html>


Output:

Screenshot-2023-12-21-154424

Please refer to the HTML Attributes Complete Reference for all the attributes in detail.



Last Updated : 01 Mar, 2024
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