Global Attributes

HTML attributes provide extra information about an element that you don't want to appear in the actual content. In this unit, we'll focus on universal attributes or global attributes — attributes that can be used with any HTML element.

What are Global Attributes?

Global attributes are attributes that can be applied to any HTML element, regardless of its type. They're called "universal" because they are universally applicable across all elements.

Here are some of the most commonly used universal attributes:

id
class
style
title

Let's take a closer look at each of these.

id Attribute

The id attribute provides a unique identifier for an element on the page. Each id value must be unique within the HTML document.

        
            css

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                    1
                    
                    #intro {
                

                    2
                    
                      background-color: green;
                

                    3
                    
                    }
                
            
                     
                    #intro {
  background-color: green;
}

        
            html

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                    1
                    
                    <p id="intro">This is an introductory paragraph.</p>
                

                    2
                    
                    <p>This is a normal paragraph</p>
                
            
                     
                    <p id="intro">This is an introductory paragraph.</p>
<p>This is a normal paragraph</p>

Output

Remember, id values must be unique. No two elements on the same page should have the same id.

class Attribute

The class attribute is used to specify one or more class names for an element. Unlike id, the same class can be used on multiple elements.

        
            css

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                    1
                    
                    .highlight {
                

                    2
                    
                      background-color: red;
                

                    3
                    
                    }
                
            
                     
                    .highlight {
  background-color: red;
}

        
            html

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                    1
                    
                    <p class="highlight">This is a highlighted paragraph.</p>
                

                    2
                    
                    <p class="highlight">This is another highlighted paragraph.</p>
                

                    3
                    
                    <p>This is a normal paragraph.</p>
                
            
                     
                    <p class="highlight">This is a highlighted paragraph.</p>
<p class="highlight">This is another highlighted paragraph.</p>
<p>This is a normal paragraph.</p>

Output

style Attribute

The style attribute is used to apply inline CSS styles to an HTML element.

        
            html

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                    1
                    
                    <p style="color:blue;">This is a blue paragraph.</p>
                
            
                     
                    <p style="color:blue;">This is a blue paragraph.</p>

Output

While it's possible to style HTML using the style attribute, it's generally considered bad practice. It's usually better to use external or internal CSS.

title Attribute

The title attribute is used to provide additional information about an element. The information is displayed as a tooltip when you hover over the element.

        
            html

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                    1
                    
                    <h1 title="I'm a tooltip">Hover over me for a few seconds to see the tooltip.</h1>
                
            
                     
                    <h1 title="I'm a tooltip">Hover over me for a few seconds to see the tooltip.</h1>

Output

Why Use Global Attributes?

Global attributes are a powerful tool in HTML. They allow you to assign specific properties to elements, style elements, and provide extra information. By understanding and using these attributes effectively, you can create more interactive, dynamic, and accessible web pages.

Remember to use universal attributes to enhance the functionality and accessibility of your web pages. These attributes provide a way to fine-tune the behavior of your HTML elements and make your pages more user-friendly.

In the following units, you'll learn about more specific types of attributes that apply to certain HTML elements. Keep exploring!

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HTML Attributes

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Element Specific Attributes

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What are Global Attributes? id Attribute class Attribute title Attribute