To change the font family of a text using CSS, you can use the font-family property. The font-family property can be used to specify the font family for an element. The font family can be specified as a single font name, or as a list of font names separated by commas. The browser will use the first font in the list that is installed on the user's system.

For example, the following code will change the font family of all p elements to Arial:

Code snippet

p {
  font-family: Arial;
}

You can also use the font-family property to specify a fallback font. A fallback font is a font that will be used if the first font in the list is not installed on the user's system. For example, the following code will change the font family of all p elements to Arial, but will use Times New Roman as a fallback font if Arial is not installed:

Code snippet

p {
  font-family: Arial, Times New Roman;
}

The font-family property is a powerful tool that can be used to change the appearance of text on your website or web application. By experimenting with different font families, you can create a look that is both visually appealing and functional.

Here are some of the most popular font families that you can use with CSS:

• Arial: A sans-serif font that is commonly used for body text.
• Times New Roman: A serif font that is commonly used for headings and titles.
• Calibri: A sans-serif font that is commonly used for body text in Microsoft Office documents.
• Georgia: A serif font that is commonly used for body text in web browsers.
• Roboto: A sans-serif font that is designed to be readable on screens.

You can also use custom fonts with CSS. To do this, you need to first download the font file and then add it to your website or web application. Once you have added the font file, you can use the font-family property to specify the font. For example, the following code will use the font file my-font.ttf to change the font family of all p elements:

Code snippet

p {
  font-family: url('my-font.ttf');
}

Using custom fonts can help you to create a unique and stylish look for your website or web application.