What feature does 'lightning-button' offer in Lightning Web Component development?

The feature that 'lightning-button' offers in Lightning Web Component development is a simplified way to create buttons with standard styling. This component is designed to integrate seamlessly into the Lightning Design System, ensuring that buttons have a consistent look and feel across Salesforce applications. By using 'lightning-button', developers can easily implement buttons that adhere to the platform's design standards without needing to manually apply styles or manage button states, such as hover and active states.

This approach enhances the overall user experience by providing a more cohesive interface while reducing the amount of custom CSS that developers would need to write to achieve similar results with standard HTML buttons. Additionally, 'lightning-button' supports features like variants (to change the appearance of the button) and labels (to define the button text), making it versatile for various use cases.