What does checked mean in css

In CSS, the checked pseudo-class is used to apply styles when a form input element (checkbox or radio button) is selected. Specific scope of application and uses include: Scope of application: Applicable to check boxes (input[type="checkbox"]) and radio buttons (input[type="radio"]). Purpose: Set a specific style for the selected element, such as changing the background color, adding a border, or updating the text color.

The meaning of checked in CSS

In CSS, the checked pseudo-class means that when a form input element (such as a complex Applies the style when a checkbox or radio button is selected.

Detailed description:

• Applicable scope:checked pseudo-class can be applied to the following form input elements:

  • checkbox
  • radio

• Purpose: checked pseudo-class enables you to set specific styles for checked elements , for example:

  • Change background color
  • Add border
  • Update text color

• ## Syntax:

  <code>input[type="checkbox"]:checked {
  /* 选中复选框时的样式 */
  }
  
  input[type="radio"]:checked {
  /* 选中单选按钮时的样式 */
  }</code>

By using the checked pseudo-class, you can easily create interactive forms that dynamically update the appearance of an element based on its checked state. For example, you can use it to highlight a selected checkbox or display additional information when a radio button is selected.

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