.parent {
    background-color: sandybrown;
    padding: 10px;
    margin: 10px;
    height: 100px;
    border: 1px solid black;
}
.child {
    background-color: aqua;
    height: 20px;
    border: 1px solid black;
}

.right {
    position: relative;
    left: 50px;
}