.container {
    background: rgb(48, 48, 48);
    height: 5000px;
}

.text {
    font-size: 40px;
    color: white;
}

.gray {
    background: gray;
    min-height: 100px;
    width: auto;
    border-radius: 10px;
    position: fixed;
    left: 50%;
    right: 50px;
    bottom: 100px;
}

.red {
    height: 100px;
    width: 100px;
    background: red;
    border-radius: 100%;
    position: absolute;
    top: -30px;
    left: 50px;
}