HTML Element Style How to - Hide div dropdown menu text when not hovered


We would like to know how to hide div dropdown menu text when not hovered.


<!DOCTYPE html>
<style type='text/css'>
div.dropdown {<!--  w  w w. j a v  a2  s  .co m-->
  position: absolute;
  width: 920px;
  height: 20px;
  top: 110px;
  left: 50%;
  margin-left: -460px;
  z-index: 1;
  background-color: gray;
  -webkit-transition: height 2s ease;
  background: black;
  text-align: center;
  color: red;
  overflow: hidden;

div.dropdown:hover {
  height: 55px;
  -webkit-transition: height 0.1s ease;
  transition: height 0.1s ease;
  <div class="dropdown">
    Menu <br />Games <br />Test

The code above is rendered as follows: