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



/* Variant 4: Outlined */
.btn-4 {
    width: 60px;
    height: 60px;
    background: white;
    border: 3px solid #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
}
.btn-4:hover {
    background: #25d366;
}
.btn-4 svg {
    fill: #25d366;
    transition: fill 0.3s;
}
.btn-4:hover svg {
    fill: white;
}