  }
    .greenbox {
        position: absolute;
        width: 50px;
        height: 50px;
        top: 125px;
        left: 125px;
        background: green;
    }
</style>
<p>You should see a gray rectangle with a green box. Neither black nor white.</p>
<div class="filt"></div>
<div class="square"></div>
<div class="greenbox"></div>
