.btn-kakao {
    background-color: #FEE500;
    color: #191919;
    border-color: #FEE500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.kakao-icon {
    width: 24px;
    height: 24px;
    margin-right: 8px;
}