.quiz {
    position: fixed;
    right: 30px;
    bottom: 30px;
    z-index: 1000;
}

.quiz__button {
    background: #35aadf;
    opacity: 1;
    display: inline-flex;
    position: relative;
    height: 50px;
    width: 50px;
    border-radius: 50%;
    font-weight: 900;
    justify-content: center;
    align-items: center;
}