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where is css

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Release： 2023-04-24 09:39:02

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Where is the CSS?

CSS, also known as Cascading Style Sheets, is a language used to add styles to HTML documents. Through CSS, we can change the color, font, size, position, etc. of text to make the web page more beautiful, easy to read, and attractive. Here, let’s explore where CSS is and how to use it.

First of all, we need to know that there are three ways to use CSS in HTML:

Inline styles

Defining styles inside HTML tags, Called inline styles. For example:

<p style="color: blue;">这是一段蓝色的文字。</p>

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In this way, the text inside the

tag will turn blue.

Advantages: Convenient and fast, suitable for some simple text format adjustments.

Disadvantages: Not conducive to maintenance and management.

Internal styles

Defining styles inside the tag of an HTML file is called an internal style. For example:

<html>
  <head>
    <style type="text/css">
      p { color: blue; }
    </style>
  </head>
  <body>
    <p>这是一段蓝色的文字。</p>
  </body>
</html>

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In this way, the text inside all

tags in the entire web page will turn blue.

Advantages: Multiple styles can be defined in the same file at the same time, which facilitates maintenance and management.

Disadvantages: Not easy to reuse.

External styles

Referencing external CSS files in HTML files is called external styles. For example:

In the HTML file, use the tag inside the tag to introduce the external CSS file:

<html>
  <head>
    <link rel="stylesheet" type="text/css" href="style.css">
  </head>
  <body>
    <p>这是一段蓝色的文字。</p>
  </body>
</html>

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Define the style in the "style.css" file:

p {
    color: blue;
}

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In this way, the text inside all

tags in the HTML file will turn blue.

Advantages: Styles can be shared between multiple files for easy maintenance and management.

Disadvantages: A little more complicated, you need to use the link tag in the head to introduce the style file.

Therefore, we can choose the appropriate CSS usage method according to our needs. If it is just a simple text format adjustment, you can use inline styles; if you want to adjust the style of the entire web page, you can use internal styles; if you need to share styles with multiple files, you can consider using external styles.

In short, where CSS is is not the main issue, we need to choose how to use it according to actual needs. The CSS language itself is a powerful tool that can help us create a more beautiful and comfortable user interface.

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