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→Using overlying Layers
Layers are defined using the <nowiki><div> and <iframe></nowiki> tags. The <nowiki><div></nowiki> tag is used to define blocks of content that are contained with the current web page. In contrast the <nowiki><iframe></nowiki> tag is used when the content is to loaded from another HTML file.
In this example we will look at the <nowiki><div></nowiki> tag but the concepts are the same for nowoki<nowiki><iframe></nowiki>.
