CSS Transition on Hover

Question

I have a problem. I actually try to do a transition at a div when I hover the mouse over an object. So basically I have a div, and when I hover my mouse the div, it should displ

Answer 1

Use the pseudo selector :hover.

#first:hover > #on-hover{
    opacity:1;
}

#on-hover{
    opacity:0;
    -webkit-transition: opacity 0.5s;
}

#first{
    width:300px;
    height:200px;
}

http://jsfiddle.net/charlescarver/V8PK3/1/