Drop-down with slide/fade effects

Example 1

Section 1
- Menu item
- Menu item
- Menu item
Section 2
Section 3
Section 4

Example 2

Section 1
- Menu item
- Menu item
- Menu item
Section 2
Section 3
Section 4

Example 3

Section 1
- Menu item
- Menu item
- Menu item
Section 2
Section 3
Section 4