[css] div hover background-color change?

How can I make it act as if a line of div is anchor so when I hover on it it returns to red

CSS

.e
{
    width:90px;
    border-right:1px solid #222;
    text-align:center;
    float:left;
    padding-left:2px;
    cursor:pointer;


}
.f .e
{
    background-color:#F9EDBE;

}

HTML

<div>
    <div class="e" >Company</div>
    <div class="e">Target</div>
    <div class="e" style="border-right:0px;">Person</div>
</div>         
<div class="f">
    <div class="e">Company</div>
    <div class="e">Target</div>
    <div class="e" style="border-right:0px;">Person</div>
</div>   
<div>
    <div class="e">Company</div>
    <div class="e">Targetaaa</div>
    <div class="e" style="border-right:0px;">Person</div>
</div>            
<div class="f"> 
    <div class="e">Company</div>
    <div class="e">Target</div>
    <div class="e" style="border-right:0px;">Person</div>
</div>  

if you want the color to change when you have simply add the :hover pseudo

div.e:hover {
    background-color:red;
}

div hover background color change

Try like this:

.class_name:hover{
    background-color:#FF0000;
}