<!DOCTYPE html>
<div style="position: absolute; top: 10px; left: 10px; width: 200px; height: 400px; outline: 1px solid blue;">
<div style="height:100px;background-color:black"></div>
</div>
<!DOCTYPE html>
<div style="position: absolute; top: 10px; left: 10px; width: 200px; height: 400px; outline: 1px solid blue;">
<div style="height:100px;background-color:black"></div>
</div>