.slider-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    min-width: 60px;
    border-radius: 100%;
    background: linear-gradient(0deg, rgba(255, 255, 255, 0.40) 0%, rgba(255, 255, 255, 0.40) 100%), #40ABE1;
    border: solid 1px #40ABE1;
    transition: background 0.3s ease;
}

.slider-button:hover {
    background: linear-gradient(0deg, rgba(255, 255, 255, 0.50) 0%,  rgba(255, 255, 255, 0.50) 100%);
}