HTML - Hypertext Markup Language, CSS - Cascading Style Sheets, <!DOCTYPE html> - Defines the document type., <html> - Defines the root of an HTML document., <head> - Defines mostly hidden information about the document, <title> - Defines a title for the document to be displayed in the tab. , < > - Opening tags., </ > - Closing tags., <body> - Defines the document's body, the area where content will be displayed. , <h1> to <h6> - Defines the style/format of headings., <p> - Defines a paragraph., <br> - Defines a single line break., <b> - Defines a part of text to be bold format., <i> - Defines a part of text to be italic format. , <u> - Defines a part of text to be underlined., <img src = > - Defines an image to be imported into the document. , <a href> - Defines the relationship between a document and an internal or external hyperlink., <ol> - Sets a list to be an organised list with numbers., <ul> - Sets a list to be an unorganised list with bullet points., <li> - Defines a list item, <style> - Defines style information for a document (CSS is entered within this tag). ,  Internal Hyperlink - A type of hyperlink on a webpage to another page or resource, such as an image or document, on the same website or domain., External Hyperlink - A hyperlink on a Web page that points to a page on a different website., <font> - Define the format of individual lines of text.,

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