.wa-icon {
    width: 30px;
    height: 30px;
    fill: white;
}            

/* Variant 10: Bouncing */
.btn-10 {
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    animation: bounce 2s infinite;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}
@keyframes bounce {
    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}