declaration defines that this document is an HTML5 document
element is the root element of an HTML page
element contains meta information about the HTML page<title>
element specifies a title for the HTML page (which is shown in the browser's title bar or in the page's tab)<body>
element defines the document's body, and is a container for all the visible contents, such as headings, paragraphs, images, hyperlinks, tables, lists, etc.
element defines a large heading
element defines a paragraphCSS is the language we use to style an HTML document.
CSS describes how HTML elements should be displayed.