body {
    background: #555555;
    color: #fff;
    position: relative;
    font-size: 30px;
}

.figures {
    position: fixed;
    left: 50%;
    right: 50px;
    bottom: 100px;
}

.rectangle {
    position: relative;
    border-radius: 10px;
    background: #fff;
    height: 100px;
    width: 47vw;
}

.circle {
    position: absolute;
    left: 100px;
    bottom: 50%;
    background: #ff0000;
    width: 100px;
    height: 100px;
    border-radius: 50%;
}