HTML Attributes

HTML attributes provide additional information about HTML elements and are specified within the opening tag of an element.

explanation of HTML attributes

Syntax 

Attributes are written as name-value pairs within the opening tag of an HTML element. The format is name="value", where name is the name of the attribute, and value is the value assigned to the attribute. Multiple attributes can be added to an element, separated by spaces.

Purpose

Attributes provide additional information or functionality to HTML elements. They can define characteristics such as the appearance, behavior, or functionality of an element, or provide metadata for accessibility, search engine optimization (SEO), or scripting purposes.

Common Attributes

HTML has many standard attributes that can be used across various elements. Some common attributes are given below,

•  id: Specifies a unique identifier for an element.
• class: Specifies one or more class names for an element, used for styling with CSS.
• style: Specifies inline CSS styles for an element.
• src: Specifies the URL of a resource, such as an image or script.
• href: Specifies the URL of the linked resource for anchor (<a>) elements.
• alt: Specifies alternative text for an image, used when the image cannot be displayed.
• title: Specifies a title or tooltip text for an element.
• target: Specifies where to open the linked resource, commonly used with anchor (<a>) elements.

Custom Attributes

In addition to standard attributes, developers can define custom attributes for their own purposes. However, it's essential to ensure that custom attributes comply with HTML standards and don't conflict with existing or future HTML specifications.

Boolean Attributes

Some attributes are boolean, meaning they don't require a value. If present, their mere existence implies a true value. Examples include disabled, readonly, checked, and required.