Table of contentsBypass table of contents
The HTML label element associates a piece of text to a control. The content of this element is supposed to label the control. This is a very important issue when targeting non visual audiences, as it helps the users determine the control's purpose.
The relation between the control and the label is set when the attributes "id" (in the control) and "for" (in the label) match.
Note that in most cases, browsers pass the focus to the control when the label is clicked.
The following example shows a simple text control associated to its label.
The "id" attribute assigns an identifier to the associated element. This identifier must be unique in the document and can be used to refer to that element in other instances (e.g., from client-side scripts).
The "class" attribute assigns a class name (or a list of class names separated by spaces) to the container element. It's used together with style sheets and tells the browser the class (or classes) to which the element is associated with.
A class gives presentational attributes to elements (read more at the Cascading Style Sheets tutorial).
This attribute is used to define presentational attributes for the containing element, and its value should be composed by style sheets properties. Although, in some cases, it can become useful, a better practice is to place presentational attributes in external files, relating them to elements with the "class" attribute. This way you keep the semantic and presentational parts of your document separated.
You can find more information about presentational attributes at the Cascading Style Sheets tutorial.
The purpose of this attribute is to provide a title for the element. Its value must be a short and accurate description of the element. Browsers usually render it as a "tool tip" when the user puts the mouse pointer over the element for a small period of time.
Specifies the language of an element's content. The default value in "unknown".
When writing XHTML 1.0 documents, the attribute used to specify the language of an elements is "xml:lang". For forward and backward compatibility both attributes can be used simultaneously like in the example below. Note, that in XHTML 1.1 the "lang" attribute has been completely replaced by "xml:lang" and its use is no longer valid.
This attribute indicates the direction in which the texts of the element must be read. This includes content, attribute values and tables. It has two possible values that are case-insensitive:
Relates the element to a character key. Most browsers allow users to access the element by pressing that key while holding down the "alt" key. The activation result depends on the element's nature. For links, this action automatically follows the link, while other elements simply get the focus.
This attribute relates the label with the control. To work correctly, the value of this attribute must match the value of the "id" attribute in the control's element.
See a complete list and information about events in HTML
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