.bg-circle-choice {

    background-image: url("../media/images/calculus/circlechoice.png");
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center;

}

.bg-daylight-25 {

    background: linear-gradient(rgba(245, 94, 39, 0.5), rgba(245, 207, 39, 0.4)), url("../media/images/library/digital/4.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-blend-mode: lighten;
    z-index: 5;

}

.animate-choice {

    animation: scale-up 3s ease infinite;
    animation-timing-function: linear;

}

@keyframes scale-up {

    from {
        transform: scale(0.5); /* Original size */
    }
    to {
        transform: scale(1); /* 20% larger */
    }

}