You can change the font of the text in CSS by using the `font-family` property. You can either choose a specific font or a generic font family.
Here is the syntax for setting the font using CSS:
```
selector {
font-family: font;
}
```
Note: Place multiple fonts separated by commas, which the browser will use if it cannot display the first font.
Here is an example of setting the font to Arial and a fallback font of sans-serif:
```
body {
font-family: Arial, sans-serif;
}
```
You can also specify additional properties like font style, font size, and font weight while setting the font:
```
body {
font-family: Arial, sans-serif;
font-size: 18px;
font-weight: bold;
}
```
Note that the browser must have the specified font available for it to display correctly, so it’s always a good idea to include a generic family font as a fallback.
