.btn {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 7px 13px 6px;
    text-decoration: none;
    color: #000;
    font-size: 1rem;
    border: 1px solid #fff;
    background-color: #fff;
    transition: background-color .3s, color .3s;
    box-sizing: border-box;
}

.btn:hover {
    color: #fff;
    background-color: transparent;
}

@media (min-width: 768px) {
    .btn {
        padding-left: 22px;
        padding-right: 22px;
        justify-content: flex-start;
    }
}