Animating a CSS3 menu?

Question

css

Hello guys! on this site get-element.3dn.ru there is a top menu, when you hover over it, a white menu pops up, with a smooth transition, guys, if it's not difficult, make an easy example of this menu so that it also floats smoothly! thank! =))) I know how to make a menu, but how to make it so that with hover, the block appears so smoothly! no matter how much I did, I couldn't!

Answer 1

See my sources . Animation can be taken from animate.css .

ul.menu2{
  transition: all 0.5s linear;
}