parent - Child CSS and Hover on font issue

parent - Child CSS and Hover on font issue

Hi i'm new to css and jquery. I have a issue with hover
i have 3 child div's like:
<div class= "parent">
<div class= "child1"></div>
<div class= "child2"></div>
<div class= "child3"></div>
</div>
I had applied hover to change color on child1 and child2 div. Yet hover is
applied over child3 div too....
Is there a way to exclude hover on child3 alone??
Any help is appreciated. Thanks in advance.
my css
div.parent:hover{
color:#909090;
}