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HTML attributes provide additional information about HTML elements.
Attributes are always specified in the start tag
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Attributes usually come in name/value pairs like:name="value"
<a> tag defines a hyperlink. The href attribute specifies the URL of the page the link goes to:
<a href="https://www.w3schools.com">Visit W3Schools</a> You will learn more about links in our HTML Links chapter.
<img> tag is used to embed an image in an HTML page. The src attribute specifies the path to the image to be displayed:
<img src="img_girl.jpg"> There are two ways to specify the URL in the src attribute:
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src ="https://www.w3schools.com/images/img_girl.jpg".External images might be under copyright. If you do not get permission to use it, you may be in violation of copyright laws. In addition, you cannot control external images; it can suddenly be removed or changed.Formula
If the URL begins with a slash, it will be relative to the domain. Example: src ="/images/img_girl.jpg".It is almost always best to use relative URLs. They will not break if you change domain.
<img> tag should also contain the width and height attributes, which specify the width and height of the image (in pixels):
<img src="img_girl.jpg" width="500" height="600">
<img> tag specifies an alternate text for an image, if the image for some reason cannot be displayed. This can be due to a slow connection, or an error in the src attribute, or if the user uses a screen reader.
<img src="img_girl.jpg" alt="Girl with a jacket">
See what happens if we try to display an image that does not exist: <img src="img_typo.jpg" alt="Girl with a jacket"> You will learn more about images in our HTML Images chapter.
The style attribute is used to add styles to an element, such as color, font, size, and more.
<p style="color:red;">This is a red paragraph.</p>You will learn more about styles in our HTML Styles chapter.
You should always include the lang attribute inside the <html> tag, to declare the language of the Web page. This is meant to assist search engines and browsers. The following example specifies English as the language: <!DOCTYPE html> <html lang="en"> <body>... </body> </html> Country codes can also be added to the language code in the lang attribute. So, the first two characters define the language of the HTML page, and the last two characters define the country. The following example specifies English as the language and United States as the country: <!DOCTYPE html>
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< html lang ="en - US"><body>... </body> </html> You can see all the language codes in our HTML Language Code Reference.
The title attribute defines some extra information about an element. The value of the title attribute will be displayed as a tooltip when you mouse over the element:
<p title="I'm a tooltip">This is a paragraph.</p>