This chapter discusses design patterns that create an alert. An alert points out important information to the reader by separating it from the content. There are two basic types of alerts: dynamic and static. The first three design patterns in this chapter are dynamic alerts, which dynamically display information as a user interacts with the document. The remaining alerts in this chapter are static alerts, which are always displayed in a document. The Alert design pattern is an HTML pattern, which is basically a heading followed by the alert’s message. The design patterns following Alert combine it with other design patterns, demonstrating how you can combine existing design patterns to create new design patterns.
KeywordsDesign Pattern Block Element Form Validation Screen Reader Shadow Effect
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