How to apply CSS styles to web pages

CSS refers to Cascading Style Sheets, a language used to describe the style of web pages. Using CSS, we can set various styles for elements in web pages to make the page look more beautiful and professional. So, this article will introduce you to the basic concepts of CSS and how to apply CSS styles in web pages.

1. Basic concepts of CSS

CSS is a style sheet language. Through CSS, we can define the style of each element in the document. CSS styles usually include color, size, font, position, etc. In CSS, each style setting consists of a property and a value. For example, the following CSS style:

p {
  color: blue;
  font-size: 16px;
  text-align: center;
}

Among them, p is the selector, used to specify the element to which this style is applied; color, font-size, and text-align are attributes, which respectively specify the color, font size, and Alignment; blue, 16px and center are values ​​used to specifically set the values ​​of these properties.

2. Methods of applying CSS styles in web pages

There are many ways to use CSS styles in HTML, including internal style sheets, external style sheets, and inline styles.

1. Internal style sheet

The internal style sheet refers to the