CSS Dropdown

Subject: css

CSS Dropdown

A CSS Dropdown is a UI component used to display a list of options or links when a user hovers over or clicks on a menu item. It is commonly used for navigation menus, tooltips, and custom selection boxes.

CSS allows you to build dropdowns without JavaScript, using only :hover and display properties.

Basic Structure

To create a dropdown, we use:

  • A parent container (.dropdown)
  • A clickable or hoverable button (.dropbtn)
  • A hidden list that appears on interaction (.dropdown-content)

Example: Hover-Based CSS Dropdown Menu

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Key Features

  • Dropdown appears on hover.
  • Uses position: absolute to place the menu below the button.
  • Links are hidden by default (display: none) and shown on hover (display: block).

Customizing the Dropdown

You can enhance the dropdown by:

  • Adding icons
  • Using animations (transition, opacity)
  • Creating multi-level dropdowns (nested .dropdown-content)

Key Takeaways

  • CSS dropdowns are built using :hover, display, and position.
  • display: none hides the menu, and display: block reveals it.
  • Use position: absolute for the dropdown and position: relative for the parent.
  • You can create complex menus without JavaScript using only CSS.
Next: CSS Navbar