How to set css font bold

CSS font bold setting refers to bolding the text on the web page. This effect can be achieved through the font-weight property in CSS stylesheets.

The font-weight attribute specifies the thickness of the font, and its value can be a number or keyword. Commonly used keywords include normal, bold, bolder, and lighter.

The following is the specific setting method:

1. Use numbers: The larger the value, the higher the font thickness, usually between 100 and 900. For example:

p {
  font-weight: 700;
}

2. Use the keywords normal and bold: normal represents a normal font weight, and bold represents a bold font weight. For example:

h1 {
  font-weight: normal;
}

h2 {
  font-weight: bold;
}

Also, if you want to make the font bolder or lighter, you can also use the keywords bolder and lighter. Different browsers may process these two keywords differently. They can usually be set in the following ways:

p {
  font-weight: 600; /*更加粗一点*/
}

h1 {
  font-weight: lighter; /*减少粗细*/
}

It should be noted that the bold effect will affect the thickness and size of the text at the same time. Therefore, you need to consider the influence of these two factors when setting font boldness. In addition, although bolding can make text more readable, excessive use can also affect the readability of web pages, so it needs to be used with caution.

Finally, it should be pointed out that in actual development, we often use CSS preprocessors to manage styles more conveniently. For example, in Sass you can use syntax similar to the following:

p {
  font-weight: bold;
  &.extra-bold {
    font-weight: 900;
  }
}

This allows you to increase the font weight of a specified element to the maximum by adding an extra class name (.extra-bold). This is especially useful when sharing styles between multiple elements.

The above is the detailed content of How to set css font bold. For more information, please follow other related articles on the PHP Chinese website!