delete

HTML

<div class="lol">
</div>
<div class="lol">
</div>
<div class="lol">
</div>

CSS

.lol {
    display:inline-block;
    background-color:pink;
    width:100px;
    height:100px;
    margin-bottom:5px;
}

.lol:first-child {
    background-color:black;
}

.lol:last-child {
    background-color:black;
}