How to make css bold

CSS is a web design language that allows us to control the appearance and layout of web pages. Among them, bold is a common text style that is often used in many different design schemes. So, how do you make text bold using CSS? This article will introduce it to you in detail.

1. Use the font-weight attribute to bold text

The most commonly used method of bolding text in CSS is to use the font-weight attribute. This property defines the thickness of the text. By default, the font-weight value of text is normal, which is normal font. If we change this value to bold, the text will become bold. Here is an example:

p {
  font-weight: bold;
}

In this example, we use a CSS selector to select all paragraph elements and then set their font-weight property to bold. This will make the text in all paragraphs bold.

The font-weight attribute can also take a smaller value, such as 400 (equivalent to normal), or a larger value, such as 700 or 800. Larger values ​​will make the text appear bolder, but this depends on whether the font itself supports such boldness. If the font does not support this boldness, the browser will use the default bold effect instead.

2. Use the strong tag to bold text

In addition to using the font-weight attribute, we can also use the strong tag in HTML to bold text. Typically, the strong tag is used to emphasize important text. By default, this text will be displayed in bold. Here is an example:

<p>这篇文章非常<strong>重要</strong>，一定要好好阅读！</p>

In this example, we use the strong tag in a paragraph to emphasize the word "important". In the browser, the word will appear in bold font. There is a similar expression for the strong tag, which is to use the b tag. The difference between these two tags is that the b tag only has a style change and has no semantic meaning. The strong tag emphasizes the importance of the text.

3. Use CSS selector to select specified text

In some special cases, we need to select text at a specified position or a specific style and make it bold. At this time, we can use pseudo-class selectors in CSS to achieve this. For example:

p::first-letter {
  font-weight: bold;
}

In this example, we use the ::first-letter pseudo-class selector to select the first letter of each paragraph and make its font bold. This will make the first letter of each paragraph bold.

There are other similar pseudo-class selectors, such as ::first-line and ::selection. Their usage is similar to ::first-letter. You can select specific text and make it bold according to different needs.

Summary

In CSS, bold is a common text style. There are many different ways to achieve bolding effects, such as using the font-weight attribute, the strong tag, and pseudo-selectors. We can choose different bolding methods according to actual needs and design requirements. I hope this article is helpful to you, and I wish you master more skills in web design!

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