.blue-bubble {
    background-image: radial-gradient(circle at left, rgba(25, 9, 115, 0.42) 0%, rgba(20, 8, 90, 0.92) 100%);
    border-radius: 50%;
    position: absolute;
    left: 3vw;
    top: 7vh;
    min-height: 300px;
    min-width: 300px;
    max-height: 400px;
    max-width: 400px;
    box-shadow: 0px 0px 11px rgba(0, 0, 0, 0.55);
}