Nachfolgend eine Übersicht über die gültigen HTML5-Elemente und deren Einsatzzweck:
| <a> | Defines a hyperlink. |
| <abbr> | Defines an abbreviated form of a longer word or phrase. |
| <address> | Specifies the author’s contact information. |
| <area> | Defines a specific area within an image map. |
| <article> | Defines an article. |
| <aside> | Defines some content loosely related to the page content. |
| <audio> | Embeds a sound, or an audio stream in an HTML document. |
| <b> | Displays text in a bold style. |
| <base> | Defines the base URL for all relative URLs in a document. |
| <bdi> | Represents text that is isolated from its surrounding for the purposes of bidirectional text formatting. |
| <bdo> | Overrides the current text direction. |
| <blockquote> | Represents a section that is quoted from another source. |
| <body> | Defines the document’s body. |
| <br> | Produces a single line break. |
| <button> | Creates a clickable button. |
| <canvas> | Defines a region in the document, which can be used to draw graphics on the fly via scripting (usually JavaScript). |
| <caption> | Defines the caption or title of the table. |
| <cite> | Indicates a citation or reference to another source. |
| <code> | Specifies text as computer code. |
| <col> | Defines attribute values for one or more columns in a table. |
| <colgroup> | Specifies attributes for multiple columns in a table. |
| <data> | Links a piece of content with a machine-readable translation. |
| <datalist> | Represents a set of pre-defined options for an <input> element. |
| <dd> | Specifies a description, or value for the term (<dt>) in a description list (<dl>). |
| <del> | Represents text that has been deleted from the document. |
| <details> | Represents a widget from which the user can obtain additional information or controls on-demand. |
| <dfn> | Specifies a definition. |
| <dialog> | Defines a dialog box or subwindow. |
| <div> | Specifies a division or a section in a document. |
| <dl> | Defines a description list. |
| <dt> | Defines a term (an item) in a description list. |
| <em> | Defines emphasized text. |
| <embed> | Embeds external application, typically multimedia content like audio or video into an HTML document. |
| <fieldset> | Specifies a set of related form fields. |
| <figcaption> | Defines a caption or legend for a figure. |
| <figure> | Represents a figure illustrated as part of the document. |
| <footer> | Represents the footer of a document or a section. |
| <form> | Defines an HTML form for user input. |
| <head> | Defines the head portion of the document that contains information about the document such as title. |
| <header> | Represents the header of a document or a section. |
| <hgroup> | Defines a group of headings. |
| <h1> to <h6> | Defines HTML headings. |
| <hr> | Produce a horizontal line. |
| <html> | Defines the root of an HTML document. |
| <i> | Displays text in an italic style. |
| <iframe> | Displays a URL in an inline frame. |
| <img> | Represents an image. |
| <input> | Defines an input control. |
| <ins> | Defines a block of text that has been inserted into a document. |
| <kbd> | Specifies text as keyboard input. |
| <keygen> | Represents a control for generating a public-private key pair. |
| <label> | Defines a label for an <input> control. |
| <legend> | Defines a caption for a <fieldset> element. |
| <li> | Defines a list item. |
| <link> | Defines the relationship between the current document and an external resource. |
| <main> | Represents the main or dominant content of the document. |
| <map> | Defines a client-side image-map. |
| <mark> | Represents text highlighted for reference purposes. |
| <menu> | Represents a list of commands. |
| <menuitem> | Defines a list (or menuitem) of commands that a user can perform. |
| <meta> | Provides structured metadata about the document content. |
| <meter> | Represents a scalar measurement within a known range. |
| <nav> | Defines a section of navigation links. |
| <noscript> | Defines alternative content to display when the browser doesn’t support scripting. |
| <object> | Defines an embedded object. |
| <ol> | Defines an ordered list. |
| <optgroup> | Defines a group of related options in a selection list. |
| <option> | Defines an option in a selection list. |
| <output> | Represents the result of a calculation. |
| <p> | Defines a paragraph. |
| <param> | Defines a parameter for an object or applet element. |
| <picture> | Defines a container for multiple image sources. |
| <pre> | Defines a block of preformatted text. |
| <progress> | Represents the completion progress of a task. |
| <q> | Defines a short inline quotation. |
| <rp> | Provides fall-back parenthesis for browsers that that don’t support ruby annotations. |
| <rt> | Defines the pronunciation of character presented in a ruby annotations. |
| <ruby> | Represents a ruby annotation. |
| <s> | Represents contents that are no longer accurate or no longer relevant. |
| <samp> | Specifies text as sample output from a computer program. |
| <script> | Places script in the document for client-side processing. |
| <section> | Defines a section of a document, such as header, footer etc. |
| <select> | Defines a selection list within a form. |
| <small> | Displays text in a smaller size. |
| <source> | Defines alternative media resources for the media elements like <audio> or <video>. |
| <span> | Defines an inline styleless section in a document. |
| <strong> | Indicate strongly emphasized text. |
| <style> | Inserts style information (commonly CSS) into the head of a document. |
| <sub> | Defines subscripted text. |
| <summary> | Defines a summary for the <details> element. |
| <sup> | Defines superscripted text. |
| <svg> | Embed SVG (Scalable Vector Graphics) content in an HTML document. |
| <table> | Defines a data table. |
| <tbody> | Groups a set of rows defining the main body of the table data. |
| <td> | Defines a cell in a table. |
| <template> | Defines the fragments of HTML that should be hidden when the page is loaded, but can be cloned and inserted in the document by JavaScript. |
| <textarea> | Defines a multi-line text input control (text area). |
| <tfoot> | Groups a set of rows summarizing the columns of the table. |
| <th> | Defines a header cell in a table. |
| <thead> | Groups a set of rows that describes the column labels of a table. |
| <time> | Represents a time and/or date. |
| <title> | Defines a title for the document. |
| <tr> | Defines a row of cells in a table. |
| <track> | Defines text tracks for the media elements like <audio> or <video>. |
| <u> | Displays text with an underline. |
| <ul> | Defines an unordered list. |
| <var> | Defines a variable. |
| <video> | Embeds video content in an HTML document. |
| <wbr> | Represents a line break opportunity. |