HTML Attributes
Core attributes
Core attributes may also be applied across almost the entire range of HTML elements.
Core attributes areid- The id attribute of an HTML element provides a unique identifier for an element within the document.
- The value of id attribute must be absolutely unique.
- The id attribute value must begin with an alphabet and followed by any combination of digit, hyphens (-), underscores (_), colons (:), and periods (.).
- The id value is case sensitive.
Syntax:
<element id=“value”>
Example:
<div id=“mnu”>
title- The title attribute specifies extra information about an element.
- The information is displayed in a tooltip when the mouse pointer is placed over the element.
Syntax:
<element title=“text”>
Example:
<h1 title=“about JavaScript”>JavaScript</h1>
class- The class attribute is used to specify the class of element.
- This attribute is used to associate an element with a style sheet.
- One or more class names can be specified for an element.
Syntax:
<element class="classname">
Example:
<div class="applycolor">Welcome to CareerRide Info</div>
style- The style attribute specifies an inline style for the element.
- This attribute provides the facility to specify Cascading Style Sheet (CSS) rules within the element.
Example:
<p style="font-family:arial; color:#800080; text-align:center">CareerRide Info</p>
lang- The lang attribute specifies the language of the element’s content along with the language of any attribute content.
- This attribute is used to identify the language of the content on a web page.
- The language of the document is declared in the <html> tag.
Syntax:
<element lang=“language_code”>
Example:
<html lang="en">
dir- The dir attribute specifies the reading direction for text as left to right or right to left.
- The dir attribute tells the browser the direction in which the displayed text is intended to be read.
The dir attribute can take one of the following two values.
| Value | Meaning |
|---|
| ltr | Left to right direction |
| rtl | Right to left direction |
Syntax:
<element dir="ltr">
Example:
<p dir="rtl"> content </p>
