很少有HTML屬性是標準的，並且與所有HTML標記關聯。這裡列出了這些屬性並進行了簡要描述。
Global Attributes
在base、head、html、meta、param、script、style和title元素中無效。
| Attribute | HTML-5 | Description |
|---|---|---|
| accesskey | Specifies a shortcut key for an element to be used in place of keyboard. | |
| class | The class of the element | |
| contenteditable | Yes | Boolean attribute to specify whether the element is editable or not. |
| contextmenu | Yes | Specifies a context menu for an element. |
| data-* | Yes | Used to store custom data associated with the element. |
| draggable | Yes | Boolean attribute to specify whether the element can be dragged or not. |
| dropzone | Yes | Specifies whether the dragged data is copied, moved, or linked, when dropped. |
| hidden | Yes | Specifies whether element should be visible or not. |
| id | A unique id for the element | |
| spellcheck | Yes | Specifies if the element must have it's spelling or grammar checked. |
| style | An inline style definition | |
| tabindex | Specifies the tab order of an element. | |
| title | A text to display in a tool tip | |
| translate | Yes | Boolean attribute specifies whether the content of an element should be translated or not |
Language Attributes
lang屬性表示用於封閉內容的語言。使用ISO標準語言縮寫來標識語言，例如fr表示French，en表示English，等等。
rfc1766（http://www.ietf.org/RFC/rfc1766.txt）描述了這些代碼及其格式。
在base、br、frame、frameset、hr、iframe、param和script元素中無效。