CSS Class: Class Selector in CSS

This updated guide examines CSS Class: Class Selector in CSS and organizes the essential facts, background, and practical takeaways in clear American English.

To declare Class in CSS, we use the following syntax:

.ten_class {
??nh d?ng các thu?c tính CSS
}

For example:

.TipsMake{
background-color: black;
color: white;
font-size: 20px;

To define HTML elements by class name, we useclass="ten_class".

For example: Website TipsMake.com

Note :

• Class can be used with any HTML element.
• Class names are only allowed to contain letters, numbers, underscores_, hyphens-. Class name should not start with numbers.
• The class name distinguishes between uppercase and lowercase letters.

Example 1: Select and style all elements with class = "intro":

.intro {
background-color: #58257b;
color: white;
}

Result:

Category Technology Village.

Technology

Introducing TipsMake.com

Example 2: Style all elements

with class = "hometown" (only applicable for

)

p.hometown {
background: #58257b;
color: white;
}

Welcome to Website TipsMake.com

Category Technology Village

Technology category

Science Category

Application category

Example 3: An element can have multiple classes

The element has two combined classes

This heading is not affected by the center class

This paragraph will be centered and red

This paragraph will be centered, red and size Very big font

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FAQ

What is CSS Class: Class Selector in CSS about?

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Understanding the main concepts helps readers evaluate the issue, avoid common mistakes, and make better-informed decisions.

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Use the guidance as a practical starting point, confirm details that may have changed, and follow current product, safety, or security recommendations.