Attributes are additional information provided by HTML elements.
HTML attributes
HTML elements can set attributes
Attributes can add additional information to the element about an element
Attributes are generally described in the opening tag
Attributes always appear in the form of name/value pairs, such as: name="value".
Attribute Example
HTML links are defined by the tag. The link's address is specified in the href attribute:
Instance
Commonly used HTML attributes QuotesAttribute values
Attribute values should always be enclosed in quotation marks.
Double quotes are the most commonly used, but there is no problem using single quotes.
Tip: In some individual cases, such as the attribute value itself contains double quotes, you must use single quotes, for example: name='John "ShotGun" Nelson'
HTML Tip: Use lowercase attributes
Attributes and attribute values are not case-sensitive.
However, the World Wide Web Consortium recommends lowercase attributes/attribute values in its HTML 4 recommendations.
The new version of (X)HTML requires lowercase attributes.
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