Styling Labels of Checked Radio Buttons with CSS

The task of applying CSS styles to labels associated with checked radio buttons can be accomplished using the CSS selector \'input[type="radio"]:checked label\`.

Explanation:

The \` symbol in this selector represents the **Adjacent Sibling Combinator**. It ensures that the label appears immediately after the checked radio button input. By combining this selector with the \:checked` pseudo-class, it targets labels that follow checked radio button inputs.

For example, consider the following markup:

Using the selector \`input[type="radio"]:checked label\, you can apply the following style:

input[type="radio"]:checked label {
  font-weight: bold;
}

This style will make the label of the checked radio button bold, while leaving the labels of unchecked radio buttons unchanged.